Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit

Marsoni

M251S

$154.24

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

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve KitThe Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the Allison 1000 transmission utilizes an in

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I tried these because the reviewer's pictures look like these would work. I will assume the integrity of the reviewer and their word that the grills in the pictures are legitimately this brand grills. Which means something terrible happened to the manufactures molds from the time the reviewer got theirs to the time I received mine. I ordered the correct ones for my pre-facelift model and the quality looked promising however the top edge was inset about a 1/4 inch from the OEM one and they wiggled around to the point that there was NO CHANCE of them staying in on the way out of my garage. Don't waste your time and money. Just spend the extra $50 to get the ones from bimmerworld.

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Reviewed in the United States on September 19, 2024

terrahjo

San Leandro, US

★★★★★ 5

Identical to originals at 1/4 of the price.

This is a review on the Kawaski KRX wheel hub covers. I am very impressed. These are identical in look to the OEM Kawasaki KRX hub covers. Those cost over $28.00 for just one. This is a 4 pack for less than that price. The okastic quality is the same and these fit the machine perfectly. We got them to replace as the others break and fall off and you can not tell which one is new compared to the old ones. Overall great buy and identical to the original. Highly recommend.

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Reviewed in the United States on September 10, 2025