Fits: 2020 thru 2026 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel

*Please call for availability*

The factory transmission coolers on the 2020+ Chevrolet and GMC Duramax L5P 6.6L is sized for stock duty, and fluid temperatures climb fast under the sustained load of towing and heavy hauling. Heat is what wears a transmission out. The Mishimoto Transmission Cooler attacks the problem with raw capacity: a tube-and-fin core with a 245% increase in core volume over stock, giving the system far more headroom to keep fluid temperatures in a safe range when the truck is working hardest.

Features:

• 245% larger core volume for better heat dissipation 
• 137% more frontal area catches more cooling airflow
• Retains use of factory oil lines
• Tube-and-fin aluminum core built for sustained load
• Drop-in without modification 
• Mishimoto Lifetime Warranty

Tech Specs: 

• Rows: 20
• Core length: 40"
• Core Height: 8.3"
• Core Thickness: 1.3"