Mahle file-fit piston ring set for a 4.160" bore (+0.005) includes 1.0mm top and second rings and a 2.0mm oil ring. Supplied for file-fit installation, these rings are prepared for final end-gap matching to the specified oversize bore. They are intended for engine rebuilds where restoring correct ring end gap and pack geometry after machining is required to reestablish proper sealing.
Mahle MS 4.160in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings