ZF5HP19 Oversized Pressure Modulator Valve Kit

The Sonnax 85755-03K is an oversized pressure modulator valve kit specifically engineered for the ZF5HP19 transmission family, including the ZF5HP19FL and ZF5HP19FLA variants. This valve kit addresses common issues within the ZF5HP19 transmission such as shift timing codes, erratic shift feel, harsh engagements, and the potential for burnt clutches. By replacing worn components with precisely sized oversized valves, Sonnax aims to rectify these problems and enhance transmission performance and longevity. Installation of this kit may require specific tooling. Sonnax recommends the use of their VB-FIX (Valve Body Reaming Fixture) for installation, particularly when used in conjunction with the F-85755-TL3PL adapter plate. This fixture ensures proper alignment and operation during the reaming process.