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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:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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 19 reviews
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Product Reviews
★★★★★ 5
Durable
Color: White
Durable Hold a lot
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 5
Sturdy plates
Color: White
Nice plates .
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Good product
Color: White
Good quality
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good Quality.
Color: Natural
Good quality. Very sturdy.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Want Sturdy?
Color: Natural
Does the job
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Reviewed in the United States on April 19, 2026