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  • Burnt converter
  • Lockup shudder
  • Overheating
  • Poor fuel economy
  • TCC codes
  • TCC cycling


Wear at the TCC control plunger valve sleeve allows converter apply oil leakage.


Stop leakage and restore normal TCC operation by installing Sonnax TCC control plunger valve kit.

JR710E, JR711E, JR712E, RE7R01A

TCC Control Plunger Valve Kit
Part No. 103740-01K

You need this if... View Instructions

During converter clutch apply in listed transmissions, the TCC control plunger valve interacts with apply pressure to help cushion the stroking of the TCC control valve. Continuous valve oscillation causes sleeve deterioration, allowing critical apply pressure to escape the circuit. This can result in lockup shudder, overheating, premature or bumpy apply and TCC slippage as well as a burnt converter. Installing Sonnax TCC control plunger valve kit 103740-01K restores critical clearances and stops pressure loss for renewed TCC operation.

  • Sleeve manufactured from highly wear-resistant aluminum alloy
  • Hardcoat anodized aluminum valve combats premature wear
  • Valve
  • Sleeve
  • 103740 01k combo
  • 103740 01k

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • 103740 01k test