Maintain healthy transmission temperatures in your 2011-2014 GM 6.6L Duramax with the Mishimoto MMTC-DMAX-11SL Transmission Cooler. Featuring a stacked-plate construction, this direct-replacement transmission cooler has a 41% greater core volume and 73% larger external fin surface when compared to the wimpy stock unit resulting in superior cooling power and maximum durability. The included direct-fit brackets, tailor-made hoses, and hardware make for a complete installation while the CNC-machined adapters provide a leak-free connection to the factory transmission cooler lines. Whether your truck is a daily driver or a racer, the Mishimoto MMTC-DMAX-11SL will keep your transmission cool and is backed by a lifetime warranty.

• Direct-Fit Installation
• Stacked-Plate Design
• 41% Greater Core Volume
• 73% Larger Fin Surface Area
• CNC-Machined Line Adapters
• Lifetime Warranty

• Core Height - 5.78"
• Core Thickness - 1.25"
• Core Length - 27.95"
• Rows - 13
• Material - 6061 Aluminum