Pacific Performance Engineering 125069000 Transmission Fluid Thermal Bypass Block Valve

The Pacific Performance Engineering 125069000 transmission fluid thermal bypass block (also called a transmission thermal bypass valve) is built for the GM 3.0L Duramax with the 10L80 10-speed automatic transmission. It is designed to increase transmission cooling capacity. It replaces the restrictive factory bypass valve, so more fluid can flow to and from the transmission cooler.

Key Features:

• Billet aluminum construction
• Maximizes fluid flow to and from the transmission cooler
• Neodymium magnet service plug with O-ring seal traps ferrous debris, and you can remove it to clean the particles out. The factory bypass valve has no such feature.
• Direct-fit with the OEM 10L80 transmission and fluid lines, for straightforward installation
• OEM reference: GM 84518145

What's Included:

• (1) Transmission fluid thermal bypass block
• (1) Neodymium magnet service plug
• (2) M8 x 1.25 x 25 flange bolts

Install it with the engine off and cool. Keep a catch can handy for residual transmission fluid.