SKU: 66790567945

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

Sale price$231.75 Regular price$257.50
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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Description

Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission CoolerThere's no greater enemy for a transmission than heat. Whether your 2011 2014 Chevy GMC 6. 6L 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 2011 2014 Chevy GMC 6. 6L Duramax transmission cooler utilizes a stacked plate design for maximum durability

There's no greater enemy for a transmission than heat. Whether your 2011-2014 Chevy/GMC 6.6L 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 2011-2014 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from It's durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 41-percent greater core volume, and 73-percent greater fin surface area than the stock 2011-2014 Duramax transmission cooler. The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.

This Part Fits:

Year Make Model Submodel
2011-2014 Chevrolet Silverado 2500 HD LT
2011-2014 Chevrolet Silverado 2500 HD LTZ
2011-2014 Chevrolet Silverado 2500 HD WT
2011-2014 Chevrolet Silverado 3500 HD LT
2011-2014 Chevrolet Silverado 3500 HD LTZ
2011-2014 Chevrolet Silverado 3500 HD WT
2011-2014 GMC Sierra 2500 HD Denali
2011-2014 GMC Sierra 2500 HD SLE
2011-2014 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2011-2014 GMC Sierra 3500 HD Denali
2011-2014 GMC Sierra 3500 HD SLE
2011-2014 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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
SKU: 66790567945

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Verified Purchase
Ignacio Cesar de los Reyes Pico
Bozeman, US
★★★★★ 5
Buenisimo
de manera confiable y enciende el vehículo sin problemas. Material resistente y duradero, fácil de instalar y compatible con el modelo del carro. Muy recomendable para mantener el vehículo en óptimas condiciones.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 2, 2025
S
Verified Purchase
Sherri Robbins
Carnegie, US
★★★★★ 1
Performance
This product doesn't work good it still message up
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Reviewed in the United States on September 12, 2023
R
Verified Purchase
Ray Matthews
Belleville, US
★★★★★ 5
From dead to Effortless Starting ...
With minimal space to maneuver in a V6 Escape it's a challenging replacement, but all done and time passed. It's still in there and cranking everytime without fail ...
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Reviewed in the United States on July 16, 2025
E
Verified Purchase
Eli Lowry
Los Angeles, US
★★★★★ 5
Fits 2010 Ford Escape V6 3.0
Fit perfectly in my 2010 Ford Escape V6 3.0
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Reviewed in the United States on May 23, 2025
B
Verified Purchase
Brantley
Fort Morgan, US
★★★★★ 5
Works well
Works great so far. Installed it about a month ago..
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Reviewed in the United States on February 16, 2026

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