4th Accumulator Repair Kit (Repair Sleeve, Pinless Piston & Seals) (Sonnax) 4L80E
Pinless Accumulator Piston
Pin Bore Plug
Complete Transmission Parts, Service & Repair
Includes Sleeve, Pinless Piston & Seals
Repeated reciprocation of the 4th accumulator piston causes wear at the piston/pin interface. After this wear reaches a critical point, the piston bore wear allows the piston to get cocked and gall the accumulator bore. Once this bore becomes severely galled, the accumulator body must be replaced. The Sonnax kit 34805-01K salvages accumulator housings with a worn or scored 4th accumulator bore. The kit includes a press-in sleeve, and a pinless accumulator piston that uses a PTFE guide ring to support the piston in the bore. No machining is required.
Kit salvages accumulator housings with a worn or scored 4th accumulator bore.
A press-in sleeve is included for easy installation.
Pinless accumulator piston uses a PTFE guide ring to support the piston in the bore.
Patent No. 6,899,211