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Mahle Piston Ring Set is a file-fit ring kit for precise bore matching, here listed at 3.989"+0.005 with 1.5mm, 1.5mm and 3.0mm ring sections. The set is intended for end-gap control and careful fitting during assembly to ensure effective combustion sealing and proper oil control. Mahle supplies dimension-specific rings that require finishing to achieve correct fit and reliable operation.
Mahle MS 3.989in+.005in 1.5 1.5 3.0 mm File Fit Rings
