Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

Marsoni

M251S

$249.47

Get it in 3 business days with 1 day shipping. Friday, May 29

Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission CoolerSKU: MMTC DMAX 01SL UPC: 811580034077 Mishimoto 01 03 Chevrolet GMC 6. 6L Duramax (LB7) Transmission Cooler This Mishimoto transmission cooler combats heat in 2001 2003 Chevrolet Silverado 2500HD 3500 and GMC Sierra 2500HD 3500 trucks with 6. 6L Duramax LB7 engines. Ideal for towing fleet work or drag strip runs the stacked plate design delivers powerful cooling with 174% greater core volume and 192% greater fin surface area than stock. CNC machined

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Your Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

The process was very smooth and fairly quick. The only challenge I had was that the CLAIM status showed complete but I had to manually go look up the status. There was no email or notification it was closed. After manually checking the status, I called customer support and they said since I called in, they would process the payout. I wonder if I didnt call in if they would have processed it? Also, the phone rep said they would issue me a amazon egift card but then the next day I received a email saying they mailed out the payout. Very poor communication but so far the process was easy and fast.

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Reviewed in the United States on April 1, 2026

Verified Purchase

San Leandro, US

★★★★★ 5

Got full credit back. Great service

Sent us Amazon credit for the full amount after our lounge chairs fell apart in less than a year. Great service!

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Reviewed in the United States on November 19, 2025

Verified Purchase

Jose NYC

Charlottesville, US

★★★★★ 5

100% recommended

They are very responsive and a super easy process. I have protected most of my purchases with them!!!!

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Reviewed in the United States on February 14, 2026

Verified Purchase

George R.

Waukegan, US

★★★★★ 1

Don't waste your time. They'll just deny claim

Not a very reliable form of insurance. I had to file a claim on a 2 month old bedframe and they gave me the run around until I contacted Amazon.

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Reviewed in the United States on January 8, 2025

Verified Purchase

Birmingham, US

★★★★★ 5

No hassle to file and get a claim resolved.

I have to say, I expected a lot of hoops to jump through. Companies are all very eager to take your money, but when it comes time to pay out, in this case (Product Insurance) quite often it is a different story. But to my surprise that is not the case with Asurion. I submited my claim, and a few days latter I received my check. At 77 and retired from the computer field i have seen alot of things with companies that do not care about customer service and satisfaction. But when you make a purchase from Amazon with their 30 day return policy and Asurion insurance. You can't beat it.

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Reviewed in the United States on November 20, 2025