Mishimoto 99-13 Chevrolet Silverado / GMC Sierra Transmission Cooler

If you work your truck hard, whether it's for towing, hauling, or just navigating tough trails, keeping your transmission cool is key to its longevity. This Mishimoto transmission cooler is built for a wide range of Chevrolet Silverado and GMC Sierra models from 1999 to 2013, including popular trucks like the Silverado 1500 and Sierra 2500 HD. It directly addresses the heat buildup that can shorten transmission life, especially under load.

What sets this cooler apart is its substantial core, which boasts a 521% increase in volume and a 278% larger frontal area compared to the stock unit. This means it can dissipate a lot more heat, even at lower speeds or when you're really putting your truck to work. The stacked-plate design is well-built for durability, and internal and external fins help circulate air and fluid efficiently for optimal heat transfer. It comes with quick-disconnect fittings that work with stock lines but can also be adapted for -6AN fittings if you're building a custom setup. An included bracket for the ambient air temperature sensor ensures all your truck's factory functions remain operational.

Installation is made straightforward with an adjustable mounting bracket, and it's designed to fit right into place. Mishimoto backs this cooler with their Lifetime Warranty, so you can install it with confidence knowing it's protected.