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Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission Cooler
Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission Cooler
Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission Cooler
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Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission Cooler

Marsoni M251S
Sale price$249.47
Pay 4 payments of $62.37 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission CoolerSKU: MMTC DMAX 11SL UPC: 811580034107 Mishimoto 11 14 Chevrolet GMC 6. 6L Duramax (LML) Transmission Cooler Control transmission heat in your 2011 2014 Chevrolet Silverado or GMC Sierra 2500HD 3500HD with the Mishimoto transmission cooler designed for the 6. 6L Duramax LML engine. This stacked plate cooler delivers powerful cooling for tow rigs fleet trucks or drag strip runners keeping fluid temperatures low for longer transmission life. It replaces
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  • 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
4.9 ★★★★★
Based on 996 reviews
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Product Reviews
K
Verified Purchase
Kcfangue
Lake Worth, US
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
N
Verified Purchase
NY2CO
Natrona Heights, US
★★★★★ 5
Save money by installing yourself
Size: 9.5" x 10.9" x 2.1"
Good price and easy to install in a 2019 Honda CRV. Instructions can be found on YouTube. Much less expensive than having a service center install them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
C
Verified Purchase
Customer Review
Los Angeles, US
★★★★★ 4
Always fits and is easy to install
Size: 9.5" x 10.9" x 2.1"
We've bought these for years and they always fit and are easy to install. Easy to see when they are dirty and need to throw away. Embarrassed that we let the car dealership do it for so long. We set on six-month subscribe and save so that we know when to replace it - change it whenever it shows up!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2023
R
Verified Purchase
Randy Shiverdecker
San Leandro, US
★★★★★ 5
Better than I expected.
Size: 9.5" x 10.9" x 2.1"
Fits perfectly. Easy to install. As good of quality as the original equipment filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
V
Verified Purchase
Victor Escobar
Birmingham, US
★★★★★ 5
Great
Size: 9.5" x 10.9" x 2.1"
Excellent product! My car really needed it. Super fast delivery and the best price. I'm super happy with this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025

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