2019-2023 Duramax Cooler Bypass (1061531)

Fits

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.

Part Number: 1061531

• Eliminates factory bypass valve
  
  

• Ensures 100% fluid flow through the transmission cooler

• Keeps your transmission temperature as low as possible

• Includes all new seals required for install, and magnetic service plug

• Fits GM 8L90 Transmissions with 1/2" cooler lines

• Replaces OEM Part Numbers: 85048209, 84443930, 84963102, 84969051