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The Mahle file-fit piston ring set for a 4.050 in bore (+0.005 in) includes 1.0mm top, 1.0mm second and 2.0mm oil rings. Supplied oversize for filing to final specification, these rings are intended for engine rebuilds where precise ring end-gap and bore matching are required. The file-fit design gives installers control over final fit and seating characteristics.
Mahle MS 4.050in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings
