Mishimoto 11-14 Chevrolet / GMC 6.6L Duramax (LML) Transmission Cooler

When you're putting your 2011-2014 Chevrolet or GMC 6.6L Duramax truck to work, whether it's for heavy towing, hauling, or even just spirited driving, keeping your transmission cool is critical. Heat is the biggest enemy of any transmission, and the stock cooler can sometimes struggle under demanding conditions. Mishimoto has developed a direct-fit transmission cooler specifically for these trucks to help manage that heat effectively.

What you get in this kit is a significantly larger transmission cooler core compared to the factory unit. It features a stacked-plate construction, which is known for its durability and powerful cooling capabilities. This design gives you a 41-percent increase in core volume and a 73-percent increase in fin surface area over the stock cooler. Installation is made straightforward with CNC-machined adapters that connect directly to your truck's existing transmission cooler lines, ensuring a leak-free setup. The kit also includes direct-fit brackets and custom hoses, making it a bolt-on upgrade that doesn't require any cutting or welding.

This Mishimoto transmission cooler is designed to integrate seamlessly with your truck's Allison transmission. It's a well-built component that aims to keep your transmission temperatures in check, especially when you're pushing your truck hard. Mishimoto backs this cooler with their Lifetime Warranty, which includes accident protection, giving you peace of mind for as long as you own your truck.