Global Leader in Automatic Transmission Aftermarket
09G, 09K, 09M, 6F21WA, TF-60SN, TF-80SC, TF-81SC
Symptoms:
Fits C1 clutch control bore for TF-80SC & TF-81SC. Fits K1 clutch control bore for TF-60SN (09G, 09K, 09M, BMW 6F21WA). Also fits Volvo (AM6), Opel (AF40), Saab (AF40/6), Ford (AF21) and Mazda (AW6A-EL).
C1/K1 clutches in Aisin AW 6-speed units are applied in first through fourth gears in conjunction with other clutch packs. As the C1/K1 clutch control valve oscillates and strokes over time, bore deterioration results, which prevents proper hydraulic control of the clutch pack. This can cause flares, slipping, erratic clutch apply timing, ratio codes, and burnt C1/K1 clutches. Reconditioning the bore and installing Sonnax oversized C1/K1 clutch control valve kit 15741-25K restores normal shift operation by re-establishing the hydraulic integrity of the C1/K1 circuit.




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