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Mahle file-fit piston ring set for a 4.165" bore (+0.005) includes 1.0mm top and second rings and a 2.0mm oil ring. Delivered for file-fit installation, these rings allow final end-gap matching to the specified oversize bore during rebuilds. Use them when machining to +0.005 to restore proper ring end gaps and pack geometry for effective sealing and engine function.
Mahle MS 4.165in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings
