Mishimoto Transmission Cooler - Silver for 2015-2016 Chevrolet Silverado/GMC Sierra 2500/3500 HD (6.6L)

Fits select 2015-2016 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (6.6L).

Excess heat is the primary cause of transmission failure, especially in heavy-duty applications. Whether your 2015-2016 GM 6.6L LML Duramax is used for heavy towing, fleet work, or performance driving, the Mishimoto direct-fit transmission cooler (MMTC-DMAX-15SL) provides the thermal management needed to protect your Allison transmission. This unit utilizes a durable stacked-plate design, offering significantly higher cooling efficiency than the factory core.

Engineering data shows this cooler provides a 67% increase in core volume and a massive 164% increase in fin surface area over the stock 2015-2016 LML cooler. To simplify installation and ensure long-term reliability, Mishimoto includes CNC-machined adapters that connect directly to the factory transmission lines. The kit also features direct-fit brackets and custom-tailored hoses for a bolt-on installation without permanent modifications.

• Direct-fit for all 2015-2016 Chevrolet and GMC trucks with Allison transmission (6.6L LML)
• Stacked-plate construction for maximum durability and pressure resistance
• 67% increase in core volume and 164% increase in fin surface area over OE
• CNC-machined adapters for easy connection to stock fluid lines or AN lines
• Includes all necessary brackets and hoses for a complete installation
• Mishimoto Lifetime Warranty with Accident Protection
• MPN: MMTC-DMAX-15SL