Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver

Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver

Marsoni

M251S

$249.97

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

Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - SilverThere's no greater enemy for a transmission than heat. Whether your 2015 2016 Chevy GMC 6. 6L LML Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct fit transmission cooler to do just that. Our 2015 2016 Chevy GMC 6. 6L LML Duramax transmission cooler utilizes a stacked plate design for maximum

Easy Shipping

Quick Dispatch:

Your Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver 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 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver ships.

Need Help?
Questions about Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver, 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 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver 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

The Best motor oil I have used. I recently began using this brand and 5W-30 instead of 0W-20 in my Chevy Silverado; noted smoother operation and no lifter ticking sounds. There feels like there is better engine protection which should add to long-term durability. This is compatible with trucks as well as cars. Probably adds a few better numbers on gas mileage too.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 24, 2026