Mishimoto 17-19 GM 6.6L Duramax L5P Transmission Cooler - Silver

There's no greater enemy for a transmission than heat. Whether your 2017-2019 Chevy/GMC 6.6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2017-2019 Chevy/GMC 6.6L L5P Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 67-percent greater core volume, and 164-percent greater fin surface area than the stock 2017-2019 L5P Duramax transmission cooler.The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it. Automatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.

• CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
• Direct-fit for all 2017-2019 Chevrolet/GMC with Allison transmission (L5P)
• Stacked-plate construction for maximum durability and superior cooling

Ensure optimal transmission performance with the Mishimoto 17-19 GM 6.6L Duramax L5P Transmission Cooler. Designed specifically for 2017-2019 Chevrolet and GMC trucks equipped with the Allison transmission, this direct-fit cooler is engineered to combat heat buildup during towing, hauling, or high-performance driving. Its stacked-plate construction offers maximum durability and efficient cooling, making it an ideal upgrade for both daily drivers and heavy-duty applications. The cooler’s larger core volume and increased fin surface area significantly outperform stock units, providing 67% more core space and 164% more fin area for superior heat dissipation and fluid temperature regulation. This ensures your transmission remains within safe operating temperatures, extending its lifespan and maintaining peak performance under demanding conditions.
Installation is straightforward thanks to CNC-machined adapters that connect directly to the stock transmission lines, eliminating leaks and reducing installation time. The included custom brackets and hoses are designed for a precise fit, ensuring a secure and reliable setup. Crafted from high-quality materials, this Mishimoto transmission cooler is built to withstand harsh environments and heavy use. As with all Mishimoto products, it comes with a lifetime warranty and accident protection, providing peace of mind for the long term. Whether you're towing heavy loads or seeking to optimize your vehicle's cooling system, this cooler is a robust and reliable upgrade that keeps your transmission cool and running smoothly.
Upgrade your GM Duramax today and enjoy enhanced cooling performance, improved transmission longevity, and consistent power delivery, all backed by Mishimoto’s proven quality and support.

Features:

• CNC-machined adapters for easy connection to stock or AN fluid lines

• Direct-fit design for 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD with Allison transmission (L5P)

• Stacked-plate construction for maximum durability and superior cooling

Fitment:
2017 Chevrolet Silverado 2500 HD High Country
2017 Chevrolet Silverado 2500 HD LT
2017 Chevrolet Silverado 2500 HD LTZ
2017 Chevrolet Silverado 2500 HD WT
2017 Chevrolet Silverado 3500 HD High Country
2017 Chevrolet Silverado 3500 HD LT
2017 Chevrolet Silverado 3500 HD LTZ
2017 Chevrolet Silverado 3500 HD WT
2018 Chevrolet Silverado 2500 HD High Country
2018 Chevrolet Silverado 2500 HD LT
2018 Chevrolet Silverado 2500 HD LTZ
2018 Chevrolet Silverado 2500 HD WT
2018 Chevrolet Silverado 3500 HD High Country
2018 Chevrolet Silverado 3500 HD LT
2018 Chevrolet Silverado 3500 HD LTZ
2018 Chevrolet Silverado 3500 HD WT
2019 Chevrolet Silverado 2500 HD High Country
2019 Chevrolet Silverado 2500 HD LT
2019 Chevrolet Silverado 2500 HD LTZ
2019 Chevrolet Silverado 2500 HD WT
2019 Chevrolet Silverado 3500 HD High Country
2019 Chevrolet Silverado 3500 HD LT
2019 Chevrolet Silverado 3500 HD LTZ
2019 Chevrolet Silverado 3500 HD WT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1