Customer Reviews

Based on 48 reviews
94%
(45)
4%
(2)
0%
(0)
0%
(0)
2%
(1)
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15-Row Full Kit
Joel Miller (Phoenix, US)
Works Great

Install took some time, but was not overly complicated. Looks great, and keeps my temps down.

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15-Row Full Kit
William Sanderson (New York, US)
One awesome transmission cooler kit.

Had a local shop install the transmission cooler kit. They said it was a very well put together and well built kit. They were thoroughly impressed with the quality of the kit and how easy it was to install. I would recommend this kit to anybody with a Toyota that didn’t come with a factory installed transmission cooler kit.

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15-Row Full Kit
T Day (Charlotte, US)
Great solution

The kit itself was awesome but the instructions were missing on how to mount the radiator properly. Figured it out and it works great. Also got no instructions on the codes for the OBD reader. Great kit but more details would have been helpful and saved time.

Thank you for the feedback. Im glad everything worked out for you in the end. We stopped including the paper instructions in the kits and moved to digital instructions on our website support page and the Youtube instal video. But, that's on us for not making that clear to our customers. We will figure out a better process. Thank you!

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15-Row Full Kit
Johan Barbon Tamayo (Miami, US)
Toyota tundra transmission cooler

the kit has good quality and its easy to install

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15-Row Full Kit
John Howell (Philadelphia, US)
Great Product

I have a 2019 Tundra pro.
I had the dealer install it. They told me it was a really nice kit . Now I feel mutch more comfortable towing with my tundra.

Don't Heasatate to buy this kit , you will not be disappointed. Also any questions or problems they get back to you right away .

You will not go wrong !!!!

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15-Row Full Kit
Andrew hochstetler (Columbus, US)
Awesome cooler

Great cooler does exactly what it’s supposed to my transmission didn’t go over 190 degrees since I installed it

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15-Row Full Kit
Eric Rettig
Nice Kit, but...

I installed the kit this pat weekend, overall is is a nice kit, but the cooler bracket was either missing a backing plate bracket for the lower portion or the fender washers are way to small. I needed to manufacture a backing plate to mount the lower portion. Overall, the system seems to work as advertised and my tranny temps are below 200 degrees. The test will be in summer when I start pulling my travel trailer around the Colorado mountains.

Hey Eric, thank you for the review! We are sorry that you ran into an issue. There definatly should have been a back plate for the lower mount. We may have missed that part during packing, thats on us. Please reach out to us via email and we are happy to send you the offical backplate. It is powder coated like the rest of the custom mount so it should withstand the elements better.

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15-Row Full Kit
Lee (Mount Vernon, US)
2 years on

an absolute must if you are towing regularly, on your 19-21 Tundra. I cannot understand why Toyota deleted the Trans oil-cooler for these years. Nothing mechanical changed and the result is much higher temps on a consistent basis. I tow 8400 lb. trailer 60% of the miles on my 2021. This system shaves 20 to 30 degrees off the fluid temp, compared to the stock configuration. This kit uses stock parts, from previous 18 and older Gen 2 Tundras. Very Quality System. Absolutely recommended.

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15-Row Full Kit
Michael C. (Manorville, US)
Excellent cooler!

Very satisfied with the cooler. Most components are OEM toyota and the parts that are aftermarket exceed my expectations. Overall a very good kit if you do not have the factory transmission cooler. Transmission temperatures very rarely go over 200 degrees and when they do, they come down rapidly after a heavy tow up a grade. Before cooler my fluid was reaching 250 plus.. That will break down the fluid and if not changed frequently and will shorten the life of the transmission.

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15-Row Full Kit
Jeff (Maryville, US)

Kit was complete and well packaged for shipment. Installed in about two hours, taking my time. I elected to install an inline magna fine filter, and pin my thermostat open. Works great, and keeps everything cool.

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15-Row Full Kit
Kenneth (Morristown, US)
One word - Excellent

bought this product just over a year ago. Works as promised. Temps stays under 200 not over 200 before the kit. No issues. Had a transmission shop put it in. Only thing but doesn't affect the performance is that it doesn't sit straight up and down, it is on a slight angle. Apparently the place where you mount it doesn't line up. They spent at least 2 hours and it was either go with the slight angle or drill unnecessarily into the truck. The owner said it won't affect performance. So far no complications with that. So I wouldn't let this discourage anyone planning to buy. Its worth the investment. Even the mechanics said this was a good thing to invest in.

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15-Row Full Kit
Rick Niemier (Las Vegas, US)
Great system !

Just finished my first trip towing my travel trailer since installing the kit. Torque and pan temps
stayed within a few degrees of each other the entire trip. I am so glad I don’t have to worry about the trans temps anymore. Thanks for making this kit.

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15-Row Full Kit
Jeremy (Seattle, US)
Great addition

Works great and keeps the tranny temp down.

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15-Row Full Kit
Wally Spencer (Eustis, US)
3 years no regrets, highly recommend

3 years ago I installed the kit. As with most the hardest part of the install is the hard lines that go along the engine. Patience is key. After that everything is a piece of cake for anyone with average mechanical skills. No leaks or any problems since the install. Temperature drops of 20-30 degrees are a result. I feel that even if you don’t tow, get the cooler.

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15-Row Full Kit
Dale Rhoades (West Chester, US)
Something Toyota forgot

Everything u need part wise is provided with the kit. An afternoon and a friend will get this installed. So if ur on the fence and do some towing get it for the piece of mind. I talked to my Toyota Service Manager and he told me “as long as the installed parts didn’t cause a problem, ie leaked and starved the tranny of fluid it won’t void my extended warranty.”

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15-Row Full Kit
Visitor Visitor (Los Angeles, US)
Tundra Oil Cooler Review

Very well thought out, designed and executed kit. Would highly recommend.

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15-Row Full Kit
John (Woodway, US)
This is a great cooling system.

My 2020 Tundra Limitied with towing package came without a transmission cooler. Driving it around on flat land at 85 F outside temps while not towing transmission temps would get to 210 F. While towing a 2600 lb trailer at 65 MPH it would get to 225-235. I've had it 2 years, towed over 15 K miles all over Texas and the Rockies, at outside temps above 105 F and the transmission temp has never gone above 210 F. Installation was a snap. I just watched a couple of YouTubes and went at it. The hardest part was leveling the truck on my uneven driveway. Prior to buying the 2020 Tundra, I had a 2007 with the same engine, which came with a factory cooler. It was OK, but I would have to watch my speed, particularly on hills, to keep the transmission below 220. The Genuine cooler is way better.

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15-Row Full Kit
Terry Meyer (Orlando, US)
Spectacular

Best upgrade for my 2019 toyota tundra 4x4 crewmax so far. Everything was OEM quality. Would definitely recommend this to anyone that has a 2018-2021 tundra that the factory no longer installed the transmission cooler.

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15-Row Full Kit
Jamie Laviano (Leesburg, US)
Great addition to the Tundra for towing!

Top of the line kit with everything needed for the install. Great addition to the Tundra for towing!

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15-Row Full Kit
Jay Neil (Farmington, US)
Easy does it - 2019 Tundra

It went in smooth, with the help of a reluctant local Toyota dealership. They mounted the tranny lines and thermostat valve alter I’d first dry-mounted (a non-OEM cooler / against their policy to install non-factory modifications) cooler up front. They finished the job off by a needed tranny flush on a truck with only 40k miles. It clearly needed it.

My home garage skills & toolset didn’t have the lift nor tools for the transmission attachment portion.

I also had the 26 gal OEM fuel tank replaced at another vendor with a Transfer Flow Inc 46 gal under cab & bed fuel tank which has doubled the single tank range from 300 to over 600 miles.

The truck performed flawlessly towing a 5000# load of aged architectural granite for a historic cemetery renovation - from central Maine to Knoxville Tennessee; at interstate speeds through the Appalachian and Smokey Mtns.

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15-Row Full Kit
M (Miami, US)
Love it

Quality parts that look great. Install was smooth but time consuming. Running about 40-50 degrees cooler. Great product.

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15-Row Full Kit
Kirby (Kansas City, US)
Works as advertised.

Bought a 2021 Tundra that doesn't have transmission cooler. I do some towing so bought the Genuine Cooling Systems cooler. It came with everything you need including the fluid. I helped my mechanic install taking about 2 hours with no problems. I have a OBD reader and before install was running over 200 degrees without towing and now below 200 even when towing. Highly recommend this cooler.

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15-Row Full Kit
John Richards (Prior Lake, US)
2019 Tundra

Couldn’t be more satisfied with purchasing this kit.
Excellent components, design, installation instructions. 10/10 for me pulling my TT cross country!

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15-Row Full Kit
Billy Tilley (Mechanicsville, US)
Great kit

Such a relief to know I have a cooler that will not let me down. I didn’t realize Toyota had removed the trans cooler from the 21 Tundra until I had a problem coming back from a show with my car in tow. The cooler kit fixed the problem

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15-Row Full Kit
Robert Gula (Valley Center, US)
The mechanic did a great install of the transmission cooler.

The trans cooler works great!