Mishimoto Transmission Cooler for 2003-2005 Chevy GMC 6.6L Duramax Stacked-Plate

Mishimoto Transmission Cooler for 2003–2005 Chevy/GMC 6.6L Duramax — Stacked-Plate Keep your transmission cool under the toughest conditions. Designed for 2003–2005 Chevy and GMC 6.6L Duramax trucks, this Mishimoto stacked-plate transmission cooler delivers superior cooling, reliability, and a direct-fit installation. Key Benefits Advanced stacked-plate design for maximum durability and efficient heat transfer Massive cooling capacity — 174% greater core volume and 192% more fin surface area vs. stock Direct-fit installation with CNC-machined adapters, direct-fit brackets, and tailor-made hoses for leak-free connections Built for heavy use — ideal for towing, fleet duty, daily driving, and performance applications Lifetime Warranty with Accident Protection for long-term peace of mind Why Choose Mishimoto Mishimoto’s transmission cooler lowers fluid temperatures to extend transmission life, reduce wear, and improve shift consistency. The robust stacked-plate construction resists damage and offers long-lasting performance where stock coolers fall short. Fitment: 2003–2005 Chevy & GMC 6.6L Duramax. Includes CNC adapters, hoses, and mounting hardware for an easy, reliable install.