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Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

Protect your transmission from heat damage with the Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler. Whether you're towing, hauling, or racing, this direct-fit transmission cooler is designed to keep your transmission running cool.

With a stacked-plate design for maximum durability and powerful cooling, this transmission cooler is significantly larger than the stock core. It boasts a 174% greater core volume and 192% greater fin surface area than the stock 2001-2003 Duramax transmission cooler.

  • CNC-machined adapters for easy connection to stock fluid lines or AN lines
  • Direct-fit brackets and tailor-made hoses for easy installation
  • Backed by the Mishimoto Lifetime Warranty with Accident Protection
Make Model Year Type
Chevrolet Silverado 2500 HD 2001 Base
Chevrolet Silverado 2500 HD 2001 LS
Chevrolet Silverado 2500 HD 2001 LT
Chevrolet Silverado 2500 HD 2002 Base
Chevrolet Silverado 2500 HD 2002 LS
Chevrolet Silverado 2500 HD 2002 LT
Chevrolet Silverado 2500 HD 2003 Base
Chevrolet Silverado 2500 HD 2003 LS
Chevrolet Silverado 2500 HD 2003 LT
Chevrolet Silverado 3500 2001 Base
Chevrolet Silverado 3500 2001 LS
Chevrolet Silverado 3500 2001 LT
Chevrolet Silverado 3500 2002 Base
Chevrolet Silverado 3500 2002 LS
Chevrolet Silverado 3500 2002 LT
Chevrolet Silverado 3500 2003 Base
Chevrolet Silverado 3500 2003 LS
Chevrolet Silverado 3500 2003 LT
GMC Sierra 2500 HD 2001 SL
GMC Sierra 2500 HD 2001 SLE
GMC Sierra 2500 HD 2001 SLT
GMC Sierra 2500 HD 2002 Base
GMC Sierra 2500 HD 2002 SL
GMC Sierra 2500 HD 2002 SLE
GMC Sierra 2500 HD 2002 SLT
GMC Sierra 2500 HD 2003 Base
GMC Sierra 2500 HD 2003 SLE
GMC Sierra 2500 HD 2003 SLT
GMC Sierra 2500 HD 2003 WT
GMC Sierra 3500 2001 SL
GMC Sierra 3500 2001 SLE
GMC Sierra 3500 2001 SLT
GMC Sierra 3500 2002 Base
GMC Sierra 3500 2002 SL
GMC Sierra 3500 2002 SLE
GMC Sierra 3500 2002 SLT
GMC Sierra 3500 2003 Base
GMC Sierra 3500 2003 SLE
GMC Sierra 3500 2003 SLT
Mishimoto is the world's leading supplier of high-performance cooling products and was created by automotive enthusiasts for automotive enthusiasts. Since its founding in 2005, Mishimoto has more than a decade of experience working to design and manufacture superior cooling system upgrades. Day after day, the Mishimoto team works to perfect existing solutions and develop new ideas. From product planning, design and development to testing and commissioning, all processes are done in-house. No cooling system leaves the factory without being meticulously checked for quality and performance by the engineers. Mishimoto aluminium radiators from this manufacturer are popular with car fans all over the world.
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