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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
fits most 1982-1995 Transmissions
Can be converted back to automatic operation with minimal changes if desired
BTU Rating 15
Premium Factory Replacement fits all units 1995-up
77898E-6K sonnax 4L60E, 4L65E Boost Valve Kit .470" 1 groove Featured Products fits most 1982-1995 TransmissionsBrand: sonnax Type: Pump Component Manufacturer Warranty: Yes Items Included: Boost valve and sleeve Manufacturer Part Number: 77898E 6K Universal Fitment: Yes Performance Part: No 4L60 E, 4L65 E Transmission Boost Valve Kit Part No. 77898E 6K Early pump design, . 470" dia., factory style, no O rings with OE ratio GM 4L60 E and 4L65 E transmissions frequently have poor line rise, which can result in 3 4 clutch, 2 4 band failure or poor shift quality.
