boost valve kit sonnax with encapsulated relief valve 4l80e 4l85e Transmission_087 28600-P7Z0

28600-P7Z0

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

RE4F02V 1989-1994

Transmissions: 4L80E (MT1) 1997-UP

SOLENOID SHIFT B BLACK CONNECTOR MAXA

boost valve kit sonnax with encapsulated relief valve 4l80e 4l85e Transmission_087 28600-P7Z0Sonnax 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