boost valve kit sonnax with encapsulated relief valve 4l80e 4l85e Transmission_087 E3DZ-7A377-A

E3DZ-7A377-A

Overhaul Kit Transtec without Pistons 6F50

MALIBU 2012-2016 6 SP F/4WD L4 1

It's also compatible with 2003-up models of brands like BMW

Enhance your transmission's performance and reliability with the Sonnax Pinless Accumulator Piston Kit

boost valve kit sonnax with encapsulated relief valve 4l80e 4l85e Transmission_087 E3DZ-7A377-ASonnax Boost Valve Kit for 4L80 E, 4L85 E Vehicles equipped with GM 4L80 E and 4L85 E transmissions often face issues such as uncontrollable line rise (up to 500 psi), high line pressure in Reverse, and broken direct clutch drums or cases. These issues are typically caused by excessive EPC torque signal pressure. The Sonnax self regulating boost valve kit 34200 10K addresses these problems by effectively limiting EPC pressure. Key Features: Hardened