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Mahle file-fit piston ring set sized 4.040"+0.005 includes 1/16, 1/16 and 3/16-inch ring sections for custom fitting during engine rebuilds. These rings are supplied for precise bore oversize application and require filing to match final cylinder dimensions. The set is intended for machinists and engine builders needing accurate ring end gaps and proven sealing geometry for restored or modified engines.
Mahle MS 4.040in+ .005in 1/16in 1/16in 3/16in File Fit Rings
