1. Transmission Coolers
  2. Derale
  3. Plate-Fin Cooler
  4. Class III
  5. With 1/2 Inch NPT
  6. 10-1/8W x 6-3/8T x 1-1/4D Inch
Derale Series 9000 Plate-Fin Transmission Cooler w/ NPT Inlets - Class III

Derale Series 9000 Plate-Fin Transmission Cooler w/ NPT Inlets - Class III

Item # D33602
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Retail:$94.69
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Transmission Coolers
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Shipping Weight: 3 lbs
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10-1/8" Wide x 6-3/8" tall x 1-1/4" deep, radiator-style heat exchanger improves the performance and overall functioning of your vehicle's transmission. Includes hose-barb adapters to fit the 1/2" NPT inlets. Lowest Prices for the best transmission coolers from Derale. Derale Series 9000 Plate-Fin Transmission Cooler w/ NPT Inlets - Class III part number D33602 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (36)
  • Q & A (1)
  • Photos
  • Why etrailer?

Derale Transmission Coolers - D33602

  • Plate-Fin Cooler
  • Class III
  • With 1/2 Inch NPT
  • 10-1/8W x 6-3/8T x 1-1/4D Inch
  • Derale
  • Standard Mount

10-1/8" Wide x 6-3/8" tall x 1-1/4" deep, radiator-style heat exchanger improves the performance and overall functioning of your vehicle's transmission. Includes hose-barb adapters to fit the 1/2" NPT inlets.


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: 1/2" NPT
  • Fittings: 1/2" NPT x 3/8" hose barb
  • GVW : 17,500
  • Overall dimensions: 10-1/8" wide x 6-3/8" tall x 1-1/4" deep
  • Distance between inlets: 8-7/8"
  • Mounting dimensions: 6-3/4" wide x 5-1/2" tall
  • 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

33602 Derale Series 9000 Plate and Fin Heat Exchanger






Customer Reviews

Derale Series 9000 Plate-Fin Transmission Cooler w/ NPT Inlets - Class III - D33602

Average Customer Rating:  4.8 out of 5 stars   (36 Customer Reviews)

10-1/8" Wide x 6-3/8" tall x 1-1/4" deep, radiator-style heat exchanger improves the performance and overall functioning of your vehicle's transmission. Includes hose-barb adapters to fit the 1/2" NPT inlets.

- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Arrived quickly, install was not too di fficult. 451751



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


I have been happy with the Derale transmission cooler. Installation was simple enough and one year later it is still working fine 331664


Comments
I actually have been very pleased with the performance. That was my third installation and all of them are working great . Thanks for asking.
7502yuma - 01/14/2018

32965

- D13613
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Good product, but don't make the mistake I made like drilling a hole in the air conditioner condenser. Should have put a piece of metal or something in case my drill went through too fast. Well, live and learn. Bob 432368



- D13613
by:

Review from a similar Derale Series 9000 in Transmission Coolers


2006 GMC 1500 This product is solidly designed and the installation kit well thought out. The connection hose was heavier and better quality than what the auto parts store could provide. I will be adding additional clamps to the connections so there are two on each just as a precaution against leakage. The single clamps are working well for my test period. I fabricated brackets for mine but using the plastic pins would work just as well. It is a huge improvement over the factory cooler. I would recommend it to anyone that is towing near or at truck capacity. 153950


Comments
The cooler is working flawlessly. I replaced the clamps with 12 PEX pipe crimps for a better seal. The transmission has operated within safe temps while towing 7000 lbs on I-70 over the Rocky Mountains. It is a worthy product!
Ben L - 10/29/2015

15726

- D13613
by:

Review from a similar Derale Series 9000 in Transmission Coolers


My vehicle originally did not have a transmission cooler. After warming up, my transmission temperature would typically be 100 degrees higher than the ambient air temperature, whether moving or stopped. Towing the largest enclosed U-Haul trailer (6'x12') would raise the temperature to about 120 degrees above ambient. After adding this cooler, the transmission stays about 70 degrees higher than the ambient air temperature on the highway, and 80-85 degrees above ambient while parked or driving in slow traffic. I haven't towed that same U-Haul trailer since adding the cooler, but towing a much larger (8.5'x20') enclosed trailer raises the temperature to about 110 degrees above ambient. If you can find a spot the cooler will physically fit, it should work for your vehicle. You may have to get creative to solidly mount it. I used an angle grinder to remove part of a factory brace. When doing work in this area of your vehicle, be careful not to puncture the AC condenser! If you do, like I did, you will have to replace it. Some AutoZone locations will rent a vacuum pump and manifold gauge set. Doing your own repair means the total repair cost is only the sum of the new AC condenser and refrigerant. The inlet/outlet NPT fittings on this cooler need to be tighter than you think. I was worried about stripping the threads, and didn't tighten them enough at first. I ended up removing my bumper cover multiple times to tighten them until they stopped leaking. I found the best way to detect a leak was to zip-tie a folded paper towel below the fitting. If it turned red, there was a leak. For my application, I would have preferred built-in 3/8" hose barb inlets instead of the 1/2" NPT fittings. 242582



- D13613
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Product really works well drop trans temp on Silverado from 160 to 125 degrees F. Could not find additional 11/32" tubing so Used 3/8" trans hose for connection- worked fine. Also I mounted on side with inlet at bottom to maximize cooling. 108166



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


i recived my Derale Series 9000 Plate-Fin Transmission Cooler Kit w/ NPT Inlets - Class I -Extra Efficient - D13611 and i really like it its well built and it look to be heavy duty and am looking forward to installing it.thanks again for a great item. 143509


Comments
Its excellent inproved the performance of my truck 100 I am a very satisfy customer.
lopez - 07/30/2015

13741

- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Fittings came contaminated with metal shavings from machining and wouldn't even fit in to the cooler really poor quality. If this is in the fittings who knows whats in the cooler. Complete waste of time do not buy 219532



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


would have been been better had the shipping dept. not covered a lot of the info printed on the out side of the box with NON-removable stickers. 180167



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


great product from a great company of e trailer.com 246564



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Packaging was damaged but no damage to cooler due to solid construction. Had done online searches for installation tips and suggestions. All very beneficial. However, this cooler is larger than many I saw online and I had to find an alternate installation location. I was able to find a suitable location in front of radiator and minor modification (drilled two additional mounting holes in mount bracket and trimmed one corner for clearance.) Overall has shown lower transmission operating temps. Have not towed since installation and hope that lower temps carry over to towing a load. I give this product,shipping, and customer service a thumbs up. 644257



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Good product. Works well decereasing my tranny temp. 449079



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


They are doing their jobs, as I ordered them thanks Lloyd 355437


Comments
All Good,THANK YOU
Lloyd S - 03/12/2018

35820

- D13613
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Installed I about an hour in my ‘09 Tahoe. Been in for a week now and lowered the tranny temp an average of 15-20 degrees. I definitely needed the extra hose that was suggested in other reviews. I actually, accidentally, ordered 2 extra so or goes on my “overs” shelf. No trailer hauling yet but will be pulling a 8x16, 4000lb about 2 hours on Friday. That’s my real test. 707691



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


The cooler was easy to install,the instruction were easy to follow. I did check the oil temp after pulling a 4000 ft grade pulling a camp trailer with an electronic temp probe and there was a 50 deg temp drop thru the cooler. 669243



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


I added the cooler brfore going on a cross country trip. So far, I have climbed the ozark mountains , Guadalupe mountains, kings canyon and death valley. The highest temperature so far was 186. I'd say it is working better than expected 640256



- D13612
by:

Review from a similar Derale Series 9000 in Transmission Coolers


great product and shipping and packaging is excellent 448600



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Unit received as promised. Thank you! 386881



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


worked as described 371890



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


GREAT SHIP TIME THANK YOU! 342475



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


This aux transmission kit was easy to install and did just the trick in bringing my engine and trans temps down form towing my trailer. Definitely recommend! 341347



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Great product, works, fits perfectly. It s everything I was expecting. 325843



- D13612
by:

Review from a similar Derale Series 9000 in Transmission Coolers


Kit had almost everything needed to install on my 09 Subaru Forester. The only extra thing I bought was another four foot length of hose. I made brackets out of metal I had on hand for a more secure mounting, and I installed the cooler with the ports facing the drivers side. I wanted to avoid sharp bends in the hoses so I made loops in both hoses to connect to the existing lines in my car. I also slid pieces of old garden hose over the new hoses at points where it was close to metal parts to avoid chafing of the hoses. The hose supplied with the kit was the correct diameter for my car and the hoses slid onto the existing fittings. I took my time with the install. I had to move the horn so I could position the cooler on the drivers side in front of the radiator and AC condenser. Routing of the hoses to the existing connections required some planning (and an extra hose) but everything else is very simple. Very nice kit! 286681



- D13614
by:

Review from a similar Derale Series 9000 in Transmission Coolers


great! works like they said fast shippi ng 262562



- D13611
by:

Review from a similar Derale Series 9000 in Transmission Coolers


all re my bad all was in lg box separate small boxes 255440


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Ask the Experts about this Derale Transmission Coolers

  • Difference Between Derale Transmission Cooler # D33602 and # D13612
    The difference between the Derale Coolers part # D33602 and # D13612 is a very minor size difference and one comes with install hardware. Essentially the part # D33602 is a little over an inch taller so it has slightly more cooling power. Since the cooling power wouldn't be noticeable different I'd go with the kit that includes the mounting hardware # D13612 .
    view full answer...



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Info for this part was:

Video by:
Dustin K
Written by:
Ronnie R
Edited by:
Daron K
Installed by:
David F
Updated by:
Jessie B

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