Mishimoto Performance Transmission Cooler | 2017-2019 L5P Duramax
Keep transmission temperatures under control with the Mishimoto Performance Transmission Cooler. Designed as a direct-fit upgrade for 2017-2019 GM trucks equipped with the 6.6L L5P Duramax and Allison transmission, this cooler provides increased cooling capacity for towing, hauling, daily driving, and performance applications.
The durable stacked-plate core provides 67% greater core volume and 164% greater fin surface area than the factory cooler, increasing heat-transfer capacity under demanding conditions. CNC-machined adapters, direct-fit brackets, and application-specific hoses simplify installation while retaining compatibility with the factory transmission cooler lines.
Key Features
- 67% greater core volume than the factory transmission cooler
- 164% greater fin surface area for improved heat transfer
- Durable stacked-plate construction
- CNC-machined adapters connect to factory fluid lines or AN lines
- Direct-fit brackets and application-specific hoses simplify installation
- Designed for improved cooling during towing, hauling, and performance driving
- Backed by Mishimoto's Lifetime Warranty with Accident Protection
Benefits
The increased core volume and fin surface area provide greater capacity to remove heat from the transmission fluid, helping maintain more consistent operating temperatures and protect the transmission during demanding driving conditions.
Fitment
Fits 2017-2019 Chevrolet Silverado and GMC Sierra HD trucks equipped with the 6.6L L5P Duramax diesel engine and Allison transmission.
