2019-2023 GM 1500 8L90 Transmission Cooler Bypass Delete (1061531)

Description

This BD Diesel kit removes the factory transmission cooler bypass valve on 2019-2023 Silverado and Sierra 1500 trucks with the 8L90 eight-speed automatic. Debris can jam the factory valve in recirculation mode, which keeps fluid out of the cooler and lets transmission temperature climb.

With the bypass deleted, 100 percent of the fluid flows through the transmission cooler all the time, which keeps transmission temperature as low as possible and removes a failure-prone part. The kit includes all the new seals needed and a magnetic service plug.

Features

• Eliminates the factory cooler bypass valve
• Sends 100 percent of fluid flow through the transmission cooler
• Keeps transmission temperature as low as possible
• New seals and a magnetic service plug included

Notes

• For 8L90 transmissions with 1/2 in. cooler lines.
• Replaces OEM Part Numbers: 85048209, 84443930, 84963102, 84969051