In listed Hyundai/Kia and Mitsubishi units, wear at the TCC control valve sleeve and limited contact area at the outer spool bore allows line pressure leakage. This prevents the valve from staying in the applied position, leading to converter apply and release issues, excess slip RPM, TCC cycling and high TCC release pressure. Sonnax TCC control valve kit 41954-03K is a drop-in repair featuring an enhanced design and increased sealing capability to stop line pressure leakage and prevent future wear.

Hardcoat anodized aluminum valve combats premature wear
Highly wear-resistant alloy aluminum sleeve incorporates an O-ring to provide positive sealing against valuable line pressure leakage to exhaust
Critical valve spools are lengthened by almost 15%
More than 80% more sealing contact area at the outboard line port area during TCC apply, while the critical outside diameter of the sleeve provides more than twice as much sealing capacity
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

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