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15-1/4" Wide x 5" tall x 3/4" deep, reliable, all-aluminum tube-and-fin cooler extends the life and improves overall functioning of your vehicle's transmission.
Features:
Specs:
Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be required for installation.
Perhaps the simplest type of heat exchanger, the tube-fin effectively cools a variety of automotive systems. The concept is simple: Fluid cools as it travels through the core by transferring heat out to the fins. The fins then provide the surface area necessary for sufficient heat exchange to take place, allowing the heat pulled from the fluid to dissipate into the surrounding air. Quick, easy and effective.
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
Ratings & Reviews
Excellent, way better than the WeatherTech rain guards I had on there before.
I installed this cooler on a 2001 odyesseyto help prevent a future trans failure.It was delivered quickly when promised,came with everything I needed for installation and had no problems.Overall a good product I would recommend this to anyone.
I am also very happy with etrailer.coms service and selection and would definitly use them again.
I used this cooler on a 2004 Chevy Silverado. The accessories were not needed because I needed longer hoses and fabricated my own mounting. I think the hose clamps and the hoses could be better quality. The cooler does work very well.
After one of use on a 2005 Honda Pilot, everything is holding up just fine. The one star less is because of the difficulty in installing it on this particular vehicle. Although this is a universal component, it is MUCH easier to install on pickup trucks. Best of luck with a brand new rubber hose going on with any sort of ease.
i put this unit in my 2008 NIssan Titan pickup. we are going to take a 9000 mile trip this summer pulling a 27 ft HI Lo camper. The instructions were very generic. specific unit instructions would be very helpful. the grill was difficult to get out until i found a Youtube video for that. the hose provided was to short, so I made a run to the parts store. the unit appears to be well made.
The product was just what I needed. The description was accurate, the price was great and the shipping was fast.
Thanks
Donnie
Just got it in the mail the other day. Fast shipping, never have had an issue. Having it installed right now. Feels like it is well constructed and should do the job. We shall see what happens.
Wanted to give my Honda better ability to handle a tow. this baby does the job. Transmission definitely cooler operation since the install. The install was simple and straight forward.
I purchased this for my C6 Corvette A6 transmission. I did, however, bypass the radiator and only use the transmission cooler for the C6. I purchased and used the Derale Radiator Adapter fitting 259-13035 for both the top and bottom and just capped them off to keep debris out of the reservoir. I also had to make some custom mounting brackets. This is an excellent product and it keeps the tranny in a great temperature range.
Fast order fulfillment.
I have always loved etrailer and their service. Once again order another of these coolers. Drop my temp from 240 to 170-190 also remember to order extra hose, the adapter if needed for your vehicle make, mount kits. Love it. Perfect this one is on a 07 GMC Yukon XL always add an extra cooler on your 1500 gmc or chevys they help out so much for them.
I just installed this on my chevy avalanche.
Flipped the bottom brace around in order to mount to.
The hardest part is getting the hoses on the cooler and over the return line.
I ended up getting a 90 deg quick connection coming from the radiator instead of using the one I got from etrailer. This keeps the hose from bending as much.
Also purchase the installation kit with a hose as you will need an extra hose.
After install I wish I would have went with the next bigger unit which is 10 high instead of 7 1/2 as I had plenty of room.
Great cooler upgrade for my 1997 GMC Yukon! Little delivery damage, but was so easy to bend those fins back to original shape so no worries!
Nice that you had proper dimension measurements online, so it was easy to figure out what kind I can fit in my truck. Complete kit had everything I needed to get it done!
Modified old cooler bracket little bit and that was it. Works great!
Hose barbs on the radiator are 0.4 inches, not 0.345. With the added raised portion it's almost 0.5 inches. It's basically impossible to force a 0.335 ID hose over a barb that big. Hopefully I was sent the wrong cooler with the kit, I could only get them on a little past the raised section. The hose will probably split too. You can see how little I was able to push them on in the photo, I bent some fins from slipping while pushing them on. Like I spent 30 minutes trying to force them on with lots of transmission fluid as lubricant.
The hose size is right for the truck. But I'm super glad I didn't order the adapter to the truck radiator if this is the quality of their radiators. Two male to male SS 3/8 inch hose barbs worked perfectly to hook the hoses to the existing line after cutting it.
The hose clamps were almost too big also. They are almost completely tightened down to where the threads stopped. The two in the photo are mine because I needed 6 and the kit only has 4.
It's almost like I was sent partially a kit for 13/32 or 3/8 inch hose. With only the hose being correct.
I installed this cooler on my 2012 Acadia. Although the Acadia has the tow package, the transmission tends to run hot when towing a 3000 pound trailer. The Derale 12903 appears to be a good choice for the Acadia; it's about a quarter the size of the radiator, so there's plenty of room to install it.
My only complaint about this unit is the supplied retainers, which pass through the cooler, AC condenser and radiator and are held in place by clips on the back side of the radiator. The first time I put any pressure on the cooler three of the clips failed. I replaced the supplied retainers with cable ties, which worked much better. I ran the cable ties through the cooler and condenser fins, then back through the condenser fins and the cooler's mounting brackets. I did use the pads supplied with the unit to keep the cooler spaced away from the condenser.
Since the cooling fans block access to the back side of the radiator, I took the condenser loose from the radiator, which allowed me to get to the back side of the condenser. I then attached the cooler to the condenser alone.
Installation required removal of the Acadia's front fascia and a few other parts, such as the plastic brace that supports the upper part of the fascia. I ran the cooler's hoses over the top of the condenser and radiator, which required putting a small notch in the plastic brace. I used the Derale 13035 adapter to connect to the radiator transmission cooler. By using this adapter, it's not necessary to cut the factory transmission lines. The auxiliary cooler can be quickly taken out of the system if necessary just by pulling the adapter out of the radiator, taking the hose off the factory transmission line and plugging the transmission line back into the radiator.
I haven't yet towed with the car, but the cooler seems to be working quite well. Prior to installing the cooler, both the engine coolant and transmission fluid temperatures were 90C (195F) at highway speeds (according to my scan tool). Now the transmission fluid temperature has dropped to 75-80C (165-175F) while the coolant temp is unchanged. I assume it will reduce the temperature while towing much more than that.
Not installed yet but its the best price i could find.
Works well. Just make sure it is matched to the load being towed.
Good product. The only problem, the hose that is supplied diameter is way to small for the nipples on the cooler. Had to heat up the hose to put on, even then extremely tight fit.
Very professional excellent phone call service. Assistant was highly informative that made sure all parts would match my vehicle.
Worked great, was able to travel safely putting my minivan to work. Simple install with great instructions. Will extend the life and increase the value of your vehicle!
Not sure of the btu output of this but it worked perfectly fine in my jeep with the factory transmission. Upgraded to a built transmission and as it seems ill need a lot more cooling capacity. No rust or corrosion so far. The clamps it ships with are a gigantic transmission hazzard... had a clamp split right down the middle on me in my drive way thankfully. I would buy different clamps if you didn't want fluid puking out of a hose at 90+ psi and kill your trans.
Removing the front bumper/grill on my Odyssey was a must! Installation was pretty much straight forward once you confirm the feed, and return connection points. Mounting the actual cooler to the front radiator was the easiest part of the job. My Odyssey made two 650 mile trips pulling 2050 lbs with no problems so I’m very happy with the cooler!
Trans inlet line is noticeably cooler after routing through radiator on 2005 Honda Pilot. Thanks!
good product form a great company !
my only complaint is this was listed as for my specific truck, but the "insta-dapt" supplied doesn't fit the Dodge truck of my year. even doing my research ahead of time, it seems to be hit or miss whether it would fit as some of them come with 5/16 fittings and some (like mine) come with 9/16 fittings. it doesnt matter the engine size, even other 3.7L dodge trucks of the same year have 5/16 fittings... I think Dodge made a change middle year, but never let the consumer know as mine is a late year '04.
no dig deal as I was able to assemble it anyways and got it up and running great and both the radiator and trans are running much cooler now !
I attached the D12902 to the bumper as you will see in attached images.
2 attached images are just before finishing, bumper hasnt been attached yet, one of them is after everything was complete.
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Vinny L.
8/16/2024
A year later and the cooler is still doing great! We’re presently on a trip and to date we’ve logged 3500 miles with no issues. One of the smartest decisions I’ve made for my 2012 Odyssey which is approaching 200K miles.