Sonnax 1-2 accumulator piston cover kit 35988-01K, a machined aluminum accumulator cover for use in any GM TH350 and TH350c transmissions, provides a strong yet lightweight alternative to OE accumulator covers. The dual O-ring design eliminates leaks and ensures the cover stays in position when used without an accumulator spring.

Machined from billet aluminum
Cover will not fall out of position like OE covers
Dual O-ring design prevents leaks
Can be used with or without accumulator spring
Sonnax 1-2 accumulator piston cover kit 35988-01K, a machined aluminum accumulator cover for use in any GM TH350 and TH350c transmissions, provides a strong yet lightweight alternative to OE accumulator covers. The dual O-ring design eliminates leaks and ensures the cover stays in position when used without an accumulator spring.

Machined from billet aluminum
Cover will not fall out of position like OE covers
Dual O-ring design prevents leaks
Can be used with or without accumulator spring