Clutch cutoff valves in listed Aisin AW, Mini and AW/Audi transmissions are responsible for switching or relaying control pressure in their respective circuits. Over time, bore deterioration allows pressure loss that negatively affects circuit function. Depending on which bore is influenced, this can result in shift timing issues, harsh or soft shifts, burnt clutches, overheated fluid and failsafe mode. Reconditioning the bore and installing Sonnax oversized clutch cutoff valve kit 15741-63K eliminates excess wear for revived shift control in all ranges.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves help center valve in bore to reduce future side-load deterioration

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