Fits: 2017 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel 

Debris in the stock cooler bypass valve can cause it to jam the internal valve, keeping it in recirculation mode. When this happens, the transmission temperature will rise, which can lead to overheating and premature transmission failure. The BD Cooler Bypass Delete keeps the transmission cooler operational all the time and eliminates this failure-prone item.

Features: 

• Eliminates Factory Bypass Valve 

• Ensures 100% Fluid Flow Through The Transmission Cooler 

• Keeps Your Transmission Temp As Low As Possible 

• Includes All New Seals Required For Install 

Includes:

• Quick Disconnect fittings 

• O-Rings

• Replacement Block 

Warranty: 

• 12 Months 

• 24,000 Miles 

DmaxStore Note: 

• Replaces OEM Part #23413140

• This product does not require an EO in California. By nature of its design, it is legal for sale and use in all 50 states. Replacement parts included. (EMS:4)