Derale Series 8000 Plate-Fin Transmission Cooler w/Barb Inlets - Class III

Derale Series 8000 Plate-Fin Transmission Cooler w/Barb Inlets - Class III

Item # D33502

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Our Price: $56.42

Transmission Coolers

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11" Wide x 7-1/4" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions. Lowest Prices for the best transmission coolers from Derale. Derale Series 8000 Plate-Fin Transmission Cooler w/Barb Inlets - Class III part number D33502 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (491)
  • Q & A (0)
  • Photos
  • Why etrailer?

Derale Transmission Coolers - D33502

  • Plate-Fin Cooler
  • Class III
  • With 11/32 Inch Hose Barb Inlets
  • 11W x 7-1/4T x 7/8D Inch
  • Derale
  • Standard Mount

11" Wide x 7-1/4" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions.


Features:

  • Prolongs life of transmission
  • Improves overall performance
  • Prevents heat-related failures
  • Has furnace-brazed aluminum construction and 3/4" wide turbulator plates for more efficient cooling
  • Recommended for medium-size cars, compact trucks, and SUVs used for light duty towing


Specs:

  • Inlets: 11/32" hose barb
  • GVW: 17,500
  • Overall dimensions: 11" wide x 7-1/4" tall x 7/8" deep
  • Distance between inlets: 10-1/4"
  • Mounting dimensions: 6-3/4" tall by 6-1/8" wide
  • 1-Year warranty


One of the more popular cooling systems available, the radiator-style, plate-and-fin heat exchanger provides increased surface area so that fluids can spread out along the finned chambers to cool faster. In addition to the increased surface area, this cooler also features turbulator technology, whereby fluids are agitated continuously, not only to facilitate heat transfer, but also to prevent any undesirable drop in pressure.


Dimensions

33502 Derale Series 8000 Plate and Fin Heat Exchanger








Customer Reviews

Derale Series 8000 Plate-Fin Transmission Cooler w/Barb Inlets - Class III - D33502

Average Customer Rating:  4.7 out of 5 stars   (491 Customer Reviews)

11" Wide x 7-1/4" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions.

- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I received the cooler on time and in fine condition. The factory box was well packed and all items were enclosed. I mounted the cooler using flat aluminum bar stock so I could leave a one inch space between the cooler and the front of the A/C condenser as I feel this will give me maximum transmission oil cooling. I used this product to replace a tube and fin cooler which was not doing the job even when not towing my trailers. I have not towed with this cooler yet but due to its construction I feel it will greatly reduce my transmission oil temperatures. Walt 9-22-2018 567912


Comments

I have been towing my inboard boat all summer and the cooler is doing a great job which I can tell because I have a transmission temperature gauge. The hottest it ever gets is 205 degrees when going uphill.

Walter L - 09/22/2019

61414

- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


No good spot on 2016 explorer limited to mount this. None of the recommended spots were feasible for install. Could have mounted it to a composite cross member, but chose not to. Will be returning item. 678880



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Really good quality. Had it for a year now. No problems at all. 588015



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I was lucky enough to have Etrailer install this on my Grand Caravan (they made a video). I drove 800 miles towing a 6x12 enclosed trailer with NO problems. It kept my transmission cool towing through the mountains. I have towed smaller trailers with the minivan that made it shift strange. After installation, all better. 17549



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Easy to install and cools trans. About six to ten degrees. 141746


Comments

Great,great

Hamilton e - 07/17/2015

13405

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Diana H. Was the best! Easy to work with and she was very well versed in the product we purchased. She saved us on shipping and did all she could do to get the product to us quickly .....thanks Diana H. Well Done! 554107


Comments

No problems towed a lot of trailers and works like advertised....thanks

Steven B - 08/15/2019

60028

- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


We've had it for a year in our 2008 TrailBlazer 2WD with 4.2L inline 6 cylinder. I think it's about the largest that would fit and we got it for a towing our 21' expandable camping trailer that can be about 4,500 lbs. max. Works great, although I added another install kit to be sure I had enough hose and the extra brackets and connection adapters. I did not want to use the mounting parts that poke through the radiator and A/C condenser fins, so I got the Derale kit with brackets and hose in an affordable kit together, part # D13006. 520230



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Great cooler and easy to install. I bout it for added insurance to protect our transmission. I feel better knowing it is there when towing our camper. 449777



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Made a quick mounting bracket from flat aluminim. Couple of zip ties later and it was installed. Would have liked informatin on about how much TM fluid to add. 180062


Comments

Been a year now, the Taco is running great, have hauled about a 5500 total load on several multi hour trips, transmission is solid.

andrew - 03/20/2016

17184

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Installed the product today. My installation is pretty unique on the Jeep Liberty CRD. This vehicle has a pusher fan in front of the stack of heat exchangers (Condenser/Trans cooler, intercooler, radiator), so the "zip tie" installation is not an option. Also, the stock trans cooler, which is the bottom 1/4 of the A/C condenser, has a different type of fitting on it. Product seems to work as intended. Hoses were a bit hard to get onto the barbs, even with a little transmission fluid as a lubricant. 47086



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Product was as described on the website. Installation took a few hours - no where near as easy as shown on the installation video - to install on my 2004 Alero. The challenge is that the upper line transmission cooler line is the line you have to route the cooler hoses to and mounting the cooler and getting the lines routed up to the top of the radiotr houseing required removal of the front bumper, loosening the radiator mount (from below the car - there are two wing nuts) and then CAREFULLY drilling a 11/2" hole in the plastic molding that completely covers the front upper portion of the radiator. Then you can route the hoses through the hole. I bought the optional GM fittings and that made connecting the hoses very easy. 17938



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I am submitting this review even though all of your customers MUST know you have one of the best, if not THE best, trailer company in the USA. You have the best products, the best selection for various applications, and no other company can beat your prices... I already purchased a lot of your products and believe me when I say I did extensive research on the exact same products before submitting my orders due to my limited funds. All of your staff are kind, courteous, patient (when it comes to helping a trailer-newbie, such as myself) understanding, very knowledgeable, and professional. Submitting an order is easy, and all of my various orders where shipped almost instantaneously and arrived on schedule. You are the best... and then, there are all the rest! Thank you for having such a great operation! 526514



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Hello Gang, I have a 2013 Chevy suburban and tow a 7K plus travel trailer. While we were towing to Colorado near Cripple Creek the temps were low 90's and my trans spiked at 230. Had to pull over to let it cool down. Now keep in mind my suburban does not have a HD trans cooler just the stock radiator cooler. Fast forward one year now my stock trans line is starting to leak from the rubber hose so it's time to change. Decided to order the larger trans cooler might not have been the best idea as it's larger then where I wanted to put it. So after taking off the front bumper, headlights misc brackets and lots of bolts I was able to get it up behind the "A" frame bracket in front of the radiator. Make sure if you go this route to put the rubber hoses and clamps on before installing because you will not be able to install the hose after. The bracket the holds the hood latch has openings that just happen to line up with the inside bolt holes on the cooler. Hoses facing down You will need to cut the bottom of the plastic out of the way to route the hoses under the frame. Cutting the original trans cooler line was easy and the rubber hose was long enough to make both connections so I did not need the adapter. If I used the adapter the rubber hose would be too short. On the bottom I used the foam pads between the cooler and the frame and secured it with heavy duty Zip ties. Can't wait to test it out this summer. I forgot to take pictures of the final install but did take one picture showing the "A" frame in the middle of the radiator. It fit's perfectly behind it. 613917



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Excellent way to terminate oil and antifreeze mixing. 573149



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I didn't know how to select the right trans cooler for my towing needs and I probably would have figured out how to mount it but with the help I got from your web site, I knew I had the right cooler and I knew how to install it in my vehicle. I saw a video of a cooler just like mine installed in a truck exactly like mine. How cool is that? etrailer.com is now my only source for trailer and towing parts. 408106



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I ordered a transmission cooler for my '09 Tahoe that, even with the small cooler for the towing package, just could not handle the California/Oregon mountains. I had my trusted mechanic install it (he has much greater expertise than I). I've just returned from an identical trip over those same mountains. What a difference! Instead of topping out at 230 degrees (dangerous), I topped out at 183, only 13 degrees from normal operating temp. I ordered the cooler and installation hardware. It's been awesome not to have to worry anymore about transmission burn out hauling my trailer that is 25% BELOW advertised towing capacity of this vehicle. Kudos to etrailer for offering such great products! 302744



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Great quality add on, I have bought less expensive transmission coolers, but this one has OEM quality. Well built, it will most likely outlast the vehicle I am installing it on. 488096



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Have a 1998 Lincoln Mark 8 w/ 4 speed automatic which retails for no less than $ 4000.00 - Having this potential monkey on my back , I decided to invest in a trans cooler. Fabricated mounts and bolted on , used double flare connection to cooling line w/ barbed fitting ; barbed fitting @ radiator fitting. Used 2 hose clamps @ cooler, one clamp on each barbed fitting . Could only mount with fittings to left ,fluid leaves radiator , enters cooler @ top ( to reduce pump load ), comes out of bottom & returns to tranny. No trans temp. guage, but cooler gets hot @ idle, verifying cooler works . Well constructed and sturdy,easy to mount ; comes with instructions. 296567


Comments

Product still working flawlessly no signs of rust or corrosion ,mounting is still secure , no leaks

chris h - 09/19/2017

28323

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


2003 dodge caravan sport 3.3l. 110kmiles Where to start... Well it's okay. Fwiw, it's small and made of metal. I didn't know it but there was a trans cooler already installed in my vehicle, and it is aluminum much much better at dissipating heat. I read every review from here to there, watched all the videos. The common theme (sales pitch) is you can't cool your trans fluid enough. I will agree with that statement, but I also believe too much of a good thing is no good. When mounted the way recommended this unit sits directly in front of the air condenser/oem trans cooler/ radiator. It blocks some of the air that is passing through. **I did a before and after check using a infrared heat gun on the lines. It was a few degrees cooler under normal operating conditions, idle for a few minutes. I don't know what the difference is under heavy loads but imagine the difference may grow to as much as 10-15 degrees or so. Somebody in the laboratory (engineers) has this info, but they won't post it for obvious reasons. Not much of a difference at all, but if you are concerned about protecting your transmission, then this may help you to sleep a little better. I'm giving this three stars because while it will help me to sleep a little better it is fairly cheap in materials. The fasteners are plastic zip ties, (PLASTIC). If you've ever used zip ties you know they don't last long. I didn't have to use much hose and only used it on one side, the other end (existing line) was long enough so that worked out fine. I think if you have a newer vehicle this is the route to go as far as bolt on and go there's nothing i found easier than this. However, at over 100k miles, it was not fun at all. My fasteners were stubborn and I could not get behind the a/c condensor to secure the fasteners behind without disconnecting the a/c lines. I didn't have a problem with removing the a/c lines because after over 10 years the a/c was weak and needed to be serviced. This totally bit me in the rear. After assembly, I thought I could simply head over to the a/c shop for a recharge at a fair price. They got half way through and during the recharge mode their machine failed and it could not be completed. After doing extensive research (many many hours) into a/c service, repair and TMI (too much information) overload. My options were either to nickle and dime repair my a/c system or buy a complete a/c kit, spend an entire back breaking weekend installing it, then paying the shop to charge it, looking at upwards of 5 benjamins or more if I did it myself. I settled on an over the counter a/c recharge kit. It worked fine, but that took many hours of research to determine whether or not it was working correctly. In short, if you have a newer vehicle with less than 100k miles or so I'd recommend it only if you are occasionally towing upward of 75% of your vehicle tow capacity. If your towing weight is less, and you are not towing very often then your vehicle already has a cooler in it that should be more than sufficient. If you are towing beyond 75% of your vehicle capacity and doing it frequently, IMO I believe your best option is to get a tow vehicle with a higher rated tow capacity to begin with. For vehicles over 100K miles, it's your call. I did it, but I did it because over the course of 10+years my vehicle rarely carried much weight in it at all and it was always serviced regularly except -as mentioned - the a/c. I still think my transmission has a lot of life in it, and for what I paid on this D13503 in addition to suspension upgrades, I least I know that I did what I could as far as preventive maintenance. One final note, do not remove any more parts/grilles, nuts and bolts, wires, lines on your vehicle than absolutely necessary. Make it as simple on yourself as you can. Some of these videos have you cutting lines, adding compression fittings, ( I didn't need any) removing wiring harnesses, etc, etc,,. Look at the big picture. Every install is a little bit different. And if you decide to go with this transmission cooler it should drop right in and you can carry on with whatever else is more important, family, friends, life, etc.. Thank you very much for reading my review, and may you have a wonderful day. Olajoe 93170


Comments

Nice review

-- comment by: Arthur - 09/03/2013

2019

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I decided to install the Derale 8000 on my 2005 Honda Odyssey with 57,500 miles as an investment in hopes to prolong the life of vehicle. The Derale 8000 series came with complete with all the parts needed for my installation. I had zero trips to the auto parts store. I'm not a mechanic but the installation was fairly easy. The videos provided by etrailer was extremely helpful and gave me confidence to do the install. The hose, provided, fits perfectly into the factory Honda hose outlet from the radiator. Also, as mentioned by other reviewers, installing the hose is a difficult even with transmission fluid to lubricate. However, I had a hard time trying to secure the cooler, due to the tight space between the condenser and radiator. A long cutting pliers/scissor would help and a lots of patience. Install with confidence! Thanks Etrailer for the awesome instructional videos! 391814



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


This transmission cooler fit perfectly behind my grill. I mounted it on brackets in lieu of a direct mount on the radiator. I’m glad you recommended the GM adaptor hose fitting as my application would not work with the Insta-Dapt which was not compatible. Works great towing my 4,000# trailer in this Florida heat. 524895



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Easy to install. Looks great. Waiting to see how much cooler she runs. 180068



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Excellent quality and build. I installed this in a 2003 Chevrolet Avalanche. I wanted a factory look installation so I mounted the bottom of the cooler in the factory bracket located mid way and made a bracket to mount the top of the cooler. I mounted it with the hoses downward so they will not be visible from the outside of the car. See pics for details on the brackets and mounting. 176500



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Haven't tried pulling my trailer up a long hill yet, but the cooler looks good. The instructions were very helpful, even though I couldn't mount it exactly as suggested. 196916



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


The cooler is a great add-on to help guarantee the life of my transmission in my 2007 Chevy Trailblazer. The size was perfect for mounting just behind my grill and well in front of the stock radiator with barely any modification/trimming of the surrounding plastic. I have no real world temperatures but I am happy knowing the the temps in my transmission are at least a little bit cooler. The only mist-step is the included mounting pieces. While handy to get things in place after forgetting to pick-up bolts, washers and nuts, the plastic ties really didn't hold up well for the 2 weeks until I removed them. They also don't play well with the bendable mounting kit unless you have something to eat up the space when the ties are tightened as far as they can go. Again, it's minor and had I remembered to purchase the hardware I eventually used prior to the actual install, I probably wouldn't even be writing this. Also, the hose is certainly not long enough for my application. 141336



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Solidly built, installation was relatively easy. Installed on a 2008 Trailblazer. Contrary to what I've read, the supplied hose was long enough. I had to cut off nearly 6" of excess. Mount in a location / orientation where the inlet / outlet are centered on and closest to the trans lines and it shouldn't be an issue. 92591



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Excellent transmission cooler with fairly easy installation. I chose to mount mine to brackets in front of the radiator rather than by pushing mounting rods through the radiator condenser. Plans for my 4-cyl Tacoma were initially for pulling a utility trailer out to my land and back. Wife wanted to get an RV and take trips. All of my purchases and installations from etrailer were based on the expert advice from the sales people. And, I actually purchased and installed all the parts before we bought an RV. This shows you that the installation videos are spot on. I could never hook up a trailer and 'try it out'. But everything worked perfectly. I kept all the weights under limit, used a weight distribution hitch, brake controller, Timbren Rear Suspension Enhancement System, and side mirrors, along with the class III hitch, and 4 pin and 7 pin wiring harness that I installed. My Tacoma is only rated for towing 3500# but we never had a problem pulling a 3000# load. 65 was tops on the speed and that was on a straight road. My scan gauge indicated that my transmission temp stayed at 165 except for when we traveled through stop and go city traffic. Then it rose to 185/190 for short times. Back on the road and it dropped to 165/170 a gain. I was really impressed with this little cooler. 524627


Comments

Still going strong after a year.

mark - 06/20/2019

56889

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


The install was very simple. This installation video you had was great! We just returned from a 400 mile road trip which put the cooler to good use with no leaks or issues. Great service and a good price. 72125



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Quality product and a great installation video on youtube by etrialer. Dropped the trans temps an avg of 30 degrees on my 11 yukon. Make sure to watch the video and order each part number listed for an easy install! 548321



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Great product! It was very easy to install and the shipping was pretty fast. Make sure to buy any adapters needed, it will make the install easier. I will definitely be a returning customer and recommend to others. Thanks! 16684


Comments

I have a 2010 Silverado 4x4 with a 6speed auto trans. I load it with a 3000 bl. cab over camper and take on the Sierra Nevadas a lot. Trans temp is very important to me as a former GM certified automatic transmission technician. For two week prion to installing this cooler I documented my trans temp reading under different driving conditions and ambient temperatures. Trans ran consistently between 180 to 210 degrees with no load in the bed. After installing this cooler and driving it under the same conditions as before, I have a clear in temp by 40 degrees. I also notice that if temp goes up from climbing a large grade, it s back down MUCH faster. A lot of these reviews talk about how easy it was to install the cooler... I would like to stress how well it works!!

-- comment by: Richard S - 07/25/2013

1805
Comments

thank you for the data.

-- comment by: dave - 01/17/2014

2595

- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Just installed this today on 2007 Honda Odyssey. JUST enough hose. Enough hose clamps if you reuse the factory ones on the trans connections. Did not need to take the bumper or bumper cover off, just the grill, and top and bottom covers. However, this makes it very difficult to get those zip rods attached. It was possible, but I had to get my tiny wife to fit her hands down there for the bottom ones. Now, lets see if it will save my tranny when I start towing 3500 lbs for 2 months and 4000 miles... will have to report back then and give a real rating then. 251259



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


The cooler arrived intact on my doorstep with all the parts and pieces present, and it took about two hours to install the unit. I needed to fabricate some mounting brackets as I didn't want to use the plastic ties that go through the radiator. I have a 2011 Subaru Outback with a 3.6 motor and a 5 speed automatic. I frequently tow a boat and need to keep the tranny cool, specially during the summer months. The installation is pretty straight forward as per instructions that are included. Each vehicle will be a bit different but a home mechanic should be able to install this cooler fairly easily. 6830



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Fun to install but if you follow the video it goes really smoothly. This was the number 1 recommended cooler for my 2012 Honda Odyssey Touring so I went ahead and got it. Before installing it I hooked my scanner to my van and drove 2 straight hours in the city and on the high way, transmission fluid temperatures would reach 195 at times. After installing it I tested the temperatures under normal driving and under towing. Under normal driving, after 2 hours the transmission fluid never got over 170. It took almost 3 hours before the transmission fluid reached 185. The van was already nice and warm when I decided to test towing so I'm not sure how long it took to get up to temperature but I can say after 45 minutes of driving through the Saura Town mountains (Hanging Rock, NC), the transmission temperature never went above 190. I would give 5 stars but the provided hose was not the correct ID and I could not get it to fit properly so I had to go buy more hose. 444073



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I found etrailer.com on random search in the internet after we bought our CRV and started researching hitches. U-Haul, whom I use often I use often and like very much, wanted $400 for the hitch, harness and transmission cooler. I found all three on etrailer for $200, and they delivered it quickly (and I mean quickly) and it wasl well packaged, etc. I figured I was a handy person, and thought how hard could it be? Well not only where the products high quality, the instructions clear and easy, they videos are a life savers for people who do better "seeing" a process, rather than "read" about a process. The hitch took me 20 minutes, the harness 20, and the Transmission Cooler about 45. Thank you etrailer for the pleasent experience, I am already going to order a few accessories for ouu CRV, and guess where I will be buying them! In case is was unclear, etrailer all the way. 136377



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Great value for the price and free shipping, package arrived on schedule, was packed extremely well, (I would know, retired Postal mail carrier), Derale 13504 transmission cooler was exactly what was described should work well for me to tow a 3500lb travel trailer with my 2008 GMC Acadia. Will be installing the cooler this week. This definitely should keep my transmission from over heating, it's rated somewhete at 22500 GVW. My vehicle and travel trailer CGVW is approximately 9000 lbs. 462784


Comments

The Derale 13504 has kept my transmission from over heating, have towed my travel trailer over 3600 miles no problems with transmission over heating in my 2008 Acadia SLT. Will be installing a auxiliary fan in front of my radiator to assist when in towing this summer. .

Louis L - 12/25/2018

47959

- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Hardest part of the installation was confirming which of the lines was the hot and which was cold. After that, installation on my 2005 Pilot was easy. Just follow directions or find a YouTube video. Tranny coolers are a must if you're planning on taxing the transmission by hauling/pulling or doing lots of hill climbing with a load in the truck/SUV. Shipping was super fast and customer service follow up on my order was great. I will absolutely buy all my trailer stuff from these guys. 291142


Comments

Still going strong. No problems and Ive still happy with the installation and performance. Thanks for following up!

James - 10/27/2017

30063

- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


2009 GMC Yukon XL towing a 7,800lb travel trailer from California to South Carolina..... I don't believe the Yukon would have made this journey if it wasn't for the additional transmission cooler and engine oil cooler. Dragging the travel trailer through the mountains during the heat of the summer was taxing. However, my transmission never got above 190 F when it was over 100 F outside. Before installing the oil cooler AND transmission cooler, my engine temp would go to the 1-2 o'clock position and transmission temp would get up to 210 F. Highly recommend this product. 548155



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Works great but words of wisdom have a professional installation done. My buddy and I poked a hole in my a/c condenser and it cost me a grand to fix the problem. 527220



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Item arrived promptly and well packaged. Installed the cooler on my 2001 silvarado z71 5.3L on a warm Redding California afternoon 105f. It only took about 1/2 hour to install it inline with my stock cooler. Promptly the next day I pulled around my utility trailer loaded down with a 8x12 wood shed, outside temp on my mirror was reading 117f. Two hours of pulling and pushing and the shed was in place. It was hot I was hot truck was not even with the AC on full. The next punishment will be pulling the 25' camper kids dog and all essential beverages over the mountains in the heat to the coast. 201919


Comments

Hey Mike could you specify where and how you mounted the second cooler please? Having trouble figuring that out!

-- comment by: Tanner - 06/17/2015

12590
Comments

TannerI mounted the cooler on the passenger side of the radiator using the stock transmission cooler mount and the headlight mount. The cooler was mounted sideways and all the way to the top of the compartment i dry fit it and made sure the plastic radiator cover would still snap into place as well as the hood closed with no issue before installing it inline with my stock cooler. Tight fit but it works and works well.

-- comment by: mike - 06/18/2015

12608
Comments

How much extra Transmission fluid did you have to add after the transmission was at normal operating temp?

-- comment by: Evan P - 03/26/2016

17255

- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Installed this on my 04 denali xl. Took me about an hour. I bolted mine on instead of using the zip ties. It is the right size to fit between the grill and the condenser. Right next to the tiny factory installed cooler that doesnt get any air because of the huge gmc logo. I installed mine in line with the factory cooler. It keeps the tranny dramatically cooler when towing. It is an inexpensive tranny saver. Etrailer has a great how to video that works for almost all the 02 to 07 yukon and suburbans. Dont forget the fitting adapter that fits into the cooler. 565715



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I recently had the chance to use the Derale 8000 series transmission cooler during my last camping trip and was very impressed. I have a 2001 7.3 Powerstroke with 4" exhaust, S&B intake, gauges and a DP Tuner (60hp tow). I pull a 10,000 pound 5th wheel around Colorado. It seems like every where I pull in Colorado is up hill. It was common to see my transmission temp easily and quickly reaching 210-220 when towing mountain passes. Just before my last trip I installed the Derale cooler and the highest trans temp I saw was 190 at the top of Wilkerson Pass. What is more impressive was how quickly the temp dropped as I came out of the pass. For most of my trip my trans temp stayed around 180. While pulling in the city I saw temps around 200 which I assume was due to stop and go driving and not having the constant airflow through the cooler. I installed the cooler right behind the stock front grill to the vertical post with self tapping screws (the grill still fits perfectly). I then used two thin strips of metal that I got from the hardware store and secured them to the cooler and to the second vertical post. I wanted the cooler in the front of my truck to get maximum airflow. I then spray painted the metal strips black just for looks. I did have to buy an additional 4' of hose due to the location where I mounted the cooler. The optional instal kit was simple. The adaptors screwed in my radiator with no problem at all. Once I decided to mount the cooler the entire project was quick and simple. 143154



- D13504
by:

Review from a similar Derale Series 8000 in Transmission Coolers


This cooler was delivered promptly and as advertized and will fit in front of the radiator and behind the grill. The 4 foot length of cooler hose is not long enough to install this cooler on a 2006 Dodge 5.9 diesel. I am a bit disappointed that I will need an additional 4 feet of cooler hose to complete this installation. I may also have to purchase a fitting but I'll find out later. I don't have pictures yet as the cooler has not been installed. I don't mind sending pictures later. Thanks, 14753



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


It was a pretty straight forward installation. I did have to remove the battery and tray as the factory spring hose clamps were positioned such that I could only get at them from the top, couldn't squeeze the clamps from a below angle. Thankfully I watched their video before ordering to see I needed another length of hose to finish the install. Took about 3 hours and seems to work well. 568120



- d13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Transmission cooler installation on 2012 GMC Yukon 5.3L. Top brace added for support. 103917


Comments

where is the cooler on a 1994 eagle vision

-- comment by: Irvin - 10/03/2014

7116

Most passenger cars do not have factory installed transmission coolers, including the Vision in all likelihood. On that car you will find a radiator for cooling the engine block and an A/C compressor condensor. If the Vision did have one, it would be integrated into the radiator at one of th corners.

-- Patrick B - 10/3/2014


- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Thanks for shipping so fast. the response time was impressive! Below is a picture of the install of my Derale trans cooler (13503) installed in my 2010 Jeep Liberty. I did not install with the inlet/outlet on the bottom due to thinking that with a plate and fin type cooler air might get trapped in other end. I mounted it horizontal and put the inlet flow on the bottom to assure that any air gets purged. Odd thing about this trans is that there is a bypass valve on the lines that is thermally operated. The flow to the coolers is bypassed until a specific oil temp is reached. Then flow is allowed to go to the cooler(s). This is done because the trans cooler is completely independent of the radiator. There is no thermal exchange between the trans fluid and the engine coolant. With the transmission fluid bypass valve in operation it is not possible to reduce trans temp below a preset level (or nearer ambient temp) because the thermostat valve simply turns off flow to the cooler(s). In a conventional setup the coolant flows all the time and there is no by-pass. Trans fluid is kept from dropping in temp by the engine coolant which will actually put heat into the trans coolant if the engine coolant is warmer. Chrysler has no thermal exchange with the engine coolant so they thermostatically control flow to keep the trans from operation at a too low temp. In short, in my vehicle I can’t reduce the trans temp below the thermostat setting, But I can assure that the temp of the trans can never be too hot. I also mounted the trans cooler on brackets I made. I was uncomfortable pushing the rods thru the radiator and the air conditioning and factory trans cooler. The added mass of the Derale trans cooler may have been a little too much clamped onto the radiator. I tapped into the original hose with a 3/8 double barb fitting and double clamped all connections. Also below is a exploded parts view showing the by pass valve on the trans lines which directs trans fluid back to the trans and by passes the cooler(s) until the trans gets to a specific temp. It is item #3. 97702


Comments

still working great!

John G - 09/02/2014

6626
Comments

Nice discussion John, thx. Did you have over heating problems prior to cooler install. I have a 2011 Liberty that overheats any time I use it off road on hills in the summer....the Jeep dealer told me that they all do this...I wonder if its actually the bypass thermostat?

-- comment by: Don W - 10/25/2014

7450
Comments

Hi Don, My Jeep has never overheated either engine or trans. I have never heard of them being prone to overheating either. If you suspect the inline thermostat on the coolant line I think that would be easy to check simply by feeling the lines and seeing if the line is returning hot trans fluid without going up front to shed some heat. I added the cooler because I put a trailer hitch on and just wanted to make sure that the trans would stay in the proper operating temp range. Are there a lot of bugsdebris in the trans or engine radiators? Is the thermostat cycling properly? Any pinched hoses? If the engine coolant is too hot it may be a pinched hose. Check the temp of the inlet hose versus outlet hose while the engine is running. If the return line is at the same temp as the outlet hose the radiator is not shedding the heat adequately. Cooling problems can be a little tricky but a little detective work can usually solve it.

-- comment by: john G - 10/28/2014

7481

- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Looks like its well made but hose is only about half of what I will need as this does not just enhance the build-in cooler but must be connected all the way back to the transmission from in front of the radiator. Install will be in a 2015 Subaru Forester 2.5i. 392008



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


The D13503 transmission cooler was a fairly straightforward DIY installation on a 2010 (3rd gen) Honda Odyssey. Watch a video or two on etrailer.com and you should be able to figure everything out. Two issues came up. First, it is not trivial to get the hose pushed securely onto the nipples of the cooler or the vehicle. Readers should thoroughly lube the inside of the hose and the outside of the nipple. (I suppose a tight fit is good, just be prepared to apply force and be patient!) Second -- and this is why the product only gets 4 stars from me -- the head of one of the plastic mounting rods broke off. No extras are supplied, so I figured out a zip-tie solution. It leaves me nervous about the strength of the remaining three, but the installation seems secure for now. Potential DIYers should also note that you are likely to break some of the body panel retainers (aka "clips") during disassembly of your vehicle's front end. (Not surprising on my 95,000 mile van; they were brittle.) Be prepared and locate a source for replacements ahead of time. Overall, this product seems well-designed, is offered at a great price from etrailer, and has the potential to lengthen the life of your transmission even when not towing. 348570



- D13501
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Installed the Derale 8000 because my 2001 Buick Century would shift hard when it got hot outside. So far i've driven it a week and it's been shifting smooth. The Derale Snap-In Radiator Adapter installed easily with no leaks. I suggest getting extra hose. Needed another 12" to complete. 199118



- D13503
by:

Review from a similar Derale Series 8000 in Transmission Coolers


Installed this in a 2005 Nissan Pathfinder. Fit is excellent. I wanted to remove the factory radiator connection as this is a common point of failure allowing coolent to enter the ATF. This is plumbed from the transmission to the factory cooler, then to this new cooler, then back to the transmission. The only thing extra I had to buy was a 3/8 double barb to connect to an existing hose. This cooler adds about half a quart of ATF to the system. I can't speak for any temp drops as I don't have a temp gauge installed yet. 101344



- D13502
by:

Review from a similar Derale Series 8000 in Transmission Coolers


I received my cooler for my 1989 Olds 88 in record time (e.g. 2 days)! After reading the instructions, I saw that the manufacturer recommends the cooler be installed in series with the cooler integral to the cars radiator. This requied addtional hose (about 3ft.). The local auto parts store carried 5/16" hose (same hose ID but a different mfr than that supplied) but found the auto parts store hose next to impossilbe to place over the cooler header fitting. I was able to install a clamp before the tubing walked itself off. I would recommend taking the cooler to the parts store and fit it up with a hose that fits properly if you need to get extra for installation. I appreciated the video that was available on your website to familiarize myself with the installation before I attempted the project. I have yet to put it to the test with a trailer in tow. Seems to be quality product. The instructions were well written. Thanks! 23813


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