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Mahle MS file‑fit piston ring set sized for a 4.060 in. bore plus 0.005 in., supplied as three rings per piston in 1/16, 1/16 and 3/16 in. cross‑sections. These file‑fit rings are provided to be final‑sized to the cylinder for accurate end gap. The set is specified by precise ring widths and oversize bore dimension, intended for engine builders needing custom ring fitting to match finished bores.
Mahle MS 4.060in+ .005in 1/16in 1/16in 3/16in File Fit Rings
