Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
CP Nitrided back‑cut top ring sized for a 4.147" bore with 1.2mm thickness. This precision top ring features nitriding treatment to improve surface hardness and wear resistance and a back‑cut profile to aid ring installation and sealing. Supplied for engine rebuilds where exact bore and ring thickness match is required, it is intended for use as a top compression ring in compatible piston assemblies.
CP Nitrided Back Cut Top Ring - 4.147 bore / 1.2mm
