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Sonnax Accumulator Piston Covers

5.0 out of 5 stars 14 Customer Reviews

Sonnax accumulator piston covers are designed for use in any GM TH350 application. They are machined from billet aluminum to provide a strong, yet lightweight alternative to OEM covers. Their dual O-ring design eliminates leaks and ensures the cover stays in position when used without an accumulator spring.

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Sonnax Accumulator Piston Covers 35988-01K

Cover, Accumulator Piston, GM, TH350, TH350C, Each

Part Number: SOX-35988-01K

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

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