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

Review from a similar Derale Series 9000 in Transmission Coolers

Arrived quickly, install was not too di fficult. 451751

by: 7502yuma01/11/2017

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

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

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

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

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

by: P71toZ7103/31/2016

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

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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

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

Its excellent inproved the performance of my truck 100 I am a very satisfy customer.

lopez - 07/30/2015

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

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

by: tool man04/22/2016

Review from a similar Derale Series 9000 in Transmission Coolers

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

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

Review from a similar Derale Series 9000 in Transmission Coolers

Good product. Works well decereasing my tranny temp. 449079

by: Lloyd S03/12/2017

Review from a similar Derale Series 9000 in Transmission Coolers

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

All Good,THANK YOU

Lloyd S - 03/12/2018

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

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

by: Gary a05/09/2019

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

Review from a similar Derale Series 9000 in Transmission Coolers

great product and shipping and packaging is excellent 448600

Review from a similar Derale Series 9000 in Transmission Coolers

Unit received as promised. Thank you! 386881

by: Leo04/25/2017

Review from a similar Derale Series 9000 in Transmission Coolers

worked as described 371890

Review from a similar Derale Series 9000 in Transmission Coolers

GREAT SHIP TIME THANK YOU! 342475

by: Aux Transmission Kit02/13/2017

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

by: Kenny12/17/2016

Review from a similar Derale Series 9000 in Transmission Coolers

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

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

Review from a similar Derale Series 9000 in Transmission Coolers

great! works like they said fast shippi ng 262562

Review from a similar Derale Series 9000 in Transmission Coolers

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