2017-2019 Duramax L5P PPE Transmission Fluid Thermal Bypass Valve (125065020)
Add another measure of protection and increase fluid flow to your transmission cooler. Increase cooling capacity with this easy-to-install billet aluminum PPE Transmission Fluid Thermal Bypass Valve for the GM L5P Duramax Diesel. The OEM part has restrictive internal passages. When the OEM valve fails in the closed position, transmission fluid doesn’t reach your cooler. This can be caused by mechanical failure or debris. The result of stock valve failure can cause the transmission to dangerously overheat. Without properly cooled transmission fluid, the demands of towing and rigorous stop-and-go driving conditions shorten the life of transmission components. The PPE Bypass Valve eliminates the extremely restrictive mechanical factory valve, maximizing fluid flow to and from the transmission cooler.
For further protection, a Neodymium magnet equipped service plug with O-ring seal has been added. The removable plug traps ferrous debris and can be accessed to remove particles from the system. The factory bypass valve does not have this feature.
- Billet aluminum construction for strength and durability
- Replaces the restrictive factory thermal bypass valve on the GM L5P Duramax
- Eliminates the risk of the OEM valve failing closed and cutting off flow to the cooler
- Maximizes transmission fluid flow to and from the cooler for increased cooling capacity
- Helps protect transmission components during towing and stop-and-go driving
- Removable service plug with Neodymium magnet traps ferrous debris
- O-ring sealed plug for a leak-free fit and easy access to clean out particles
- Easy installation
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