• Lockup shudder
  • TCC cycling


Wear at the TCC control sleeve due to continuous plunger valve oscillation allows valuable oil leakage.


This tightly toleranced replacement plunger valve kit restores hydraulic integrity for proper TCC control.


TCC Control Plunger Valve Kit
Part No. 36424-08K

Fits PWM units only.

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Ford 4R100 PWM units use a plunger valve assembly and coil spring to cushion the TCC control valve. That assembly uses regulated converter pressure as a variable hydraulic spring to control the rate of TCC apply. Continuous oscillation of the TCC control plunger valve wears the sleeve ID, allowing regulated converter pressure leakage. This can result in premature or bumpy TCC apply and/or shudder. Sonnax TCC control plunger valve kit 36424-08K restores hydrualic integrity.

  • Sleeve is manufactured from highly wear-resistant aluminum alloy.
  • Hardcoat anodized aluminum valve combats premature wear.
  • Valve
  • Sleeve
  • 4R100 TCC Control Plunger Valve Kit 36424-08K
  • 4R100 TCC Control Plunger Valve Kit 36424-08K