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

$99.95

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

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve KitSKU: MMTC L5P TBVFF UPC: 840197710609 Mishimoto 2017+ GMC 6. 6L Duramax L5P Transmission Thermal Bypass Valve Kit Upgrade your 2017 2021 Chevrolet Silverado 2500 HD 3500 HD and GMC Sierra 2500 HD 3500 HD with L5P 6. 6L Duramax using the Mishimoto full flow thermal bypass valve kit. This direct fit replacement eliminates the stock thermostat that fails and blocks fluid flow to the cooler causing overheating. Experience constant transmission cooling for

Easy Shipping

Quick Dispatch:

Your Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit orders ship within 1-2 business days.

Delivery Options:

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

Order Tracking:

You'll receive a tracking link by email once your Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit ships.

Need Help?
Questions about Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

Honestly, these are expensive. So if you’re not picky or you don’t really care about your beef jerky, then you don’t really need this one. But if your pallet desires the finer beef jerky in life, and this is the way to go. I took a risk with it and I’m glad I did otherwise I would never have experienced this delicious taste before. I can’t describe it to you, just buy it and eat it and you’ll understand, but only if you really care what your beef jerky taste like, if you can’t tell the difference between amazing jerky and awful jerky and don’t worry about it

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 3, 2026

Verified Purchase

Toby G. Boy

Lake Worth, US

★★★★★ 3

mmmm wish it was more better

Set name: Variety Pack Pack of 6

needs more flavor

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 15, 2026

Verified Purchase