Symptoms:

  • Delayed engagement
  • Pressure regulator buzz
  • Lost or damaged component

Cause:

Debris and constant oscillation of the pressure regulator valve can create scratches or wear on the critical spools, or the part can be damaged during rebuild.

Correction:

Restore hydraulic function of the pressure regulator valve by installing a direct-replacement Sonnax drop-in valve.

42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904

Pressure Regulator Valve
Part No. 22771A-42

Fits '78-later units only.

OE Part No. 4130169

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Sonnax pressure regulator valve 22771A-42 is a direct replacement for worn, scratched, damaged or missing valves in listed Chrysler transmissions. The drop-in Zip Valve™ installs quickly and easily.

For optimum reliability and improved performance under extreme operating conditions, replace the OE valve with Sonnax lube regulator pressure regulator valve 22771A-02K.

Learn More About Zip Valve™ Drop-In Repairs
  • 42RE, 42RH, 44RE, 44RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904 Pressure Regulator Valve 22771A-42