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Complete Mishimoto 11-14 Chevrolet / Gmc 6.6l Duramax (lml) Transmission Cooler With A 35% Price Cut [COIhVt3E]

$71.99 $230.99 -69%

Mishimoto Transmission Cooler for Chevy/GMC 6.6L Duramax Keep your 2011-2014 Chevrolet/GMC 6.6L Duramax transmission running at peak performance with the Mishimoto Transmission Cooler. Engineered to combat the harmful effects of heat, this cooler is

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Mishimoto Transmission Cooler for Chevy/GMC 6.6L Duramax

Keep your 2011-2014 Chevrolet/GMC 6.6L Duramax transmission running at peak performance with the Mishimoto Transmission Cooler. Engineered to combat the harmful effects of heat, this cooler is a must-have for vehicles used for towing, heavy-duty work, or regular driving. Designed for easy installation and superior cooling, this product is the ideal solution for maintaining your vehicle's transmission health.

Advanced Cooler Design and Construction

The Mishimoto Transmission Cooler boasts a stacked-plate design that provides maximum durability and superior cooling performance. With a 41% greater core volume and 73% greater fin surface area than the stock cooler, this Mishimoto unit effectively dissipates heat, ensuring your transmission stays cool under the toughest conditions. The CNC-machined adapters connect directly to the stock transmission cooler lines for a leak-free cooling experience, while the direct-fit brackets and tailor-made hoses make installation a breeze.
  • Increased core volume for enhanced cooling performance
  • Stacked-plate design for durability
  • Direct-fit brackets and hoses for easy installation

Optimized for Various Chevy/GMC Models

The Mishimoto Transmission Cooler is specifically designed to fit a wide range of 2011-2014 Chevy/GMC 6.6L Duramax models, including Silverado and Sierra trucks. This versatile cooler is an excellent choice for drivers who need a reliable and effective solution to protect their transmission from overheating. With its robust construction and superior cooling capabilities, this Mishimoto cooler is perfect for both daily drivers and those who regularly engage in towing or off-road activities.
  • Fitment for 2011-2014 Chevy/GMC 6.6L Duramax models
  • Optimized for heavy-duty applications and regular driving
  • Backed by a Lifetime Warranty with Accident Protection

What Our Customers Say

December 28, 2025

Absolutely no complaints!

So simple, yet so effective.

- Scarlett M..

December 28, 2025

Absolutely no complaints!

This is a really good buy.

- Beth B..

December 28, 2025

Absolutely no complaints!

A great product. Great value.

- Tracie O..

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