Mishimoto 15-16 GM 6.6L Duramax (LML) Transmission Cooler - Silver

The transmission in your 2015-2016 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD, especially with the 6.6L Duramax LML engine, works hard. Keeping it cool is key to its longevity, whether you're towing heavy loads, running a fleet, or just enjoying the drive. Mishimoto developed a direct-fit transmission cooler specifically for these trucks to help manage heat effectively.

This cooler uses a stacked-plate design, which is known for its strength and ability to dissipate heat efficiently. Compared to the stock unit, this Mishimoto cooler offers a significant upgrade with 67-percent more core volume and a 164-percent larger fin surface area. This means it can handle more heat and keep your transmission fluid at a more stable temperature, even under demanding conditions. The kit includes CNC-machined adapters that connect directly to your truck's original transmission cooler lines, ensuring a leak-free installation. Custom-fit brackets and hoses are also provided, making the installation process straightforward.

This transmission cooler is a solid option for anyone looking to protect their Allison transmission from the damaging effects of excessive heat. Mishimoto backs this cooler with their Lifetime Warranty with Accident Protection, giving you peace of mind for as long as you own your truck.