Mahle OE Plasma Moly piston ring set for a 4.150 in bore, listed with .043 in and 3.00 MM ring specifications. The set is described as plasma moly, ductile, ultra low tension moly rings intended to reduce friction and retain sealing properties under typical engine use. This kit matches the bore size and ring specs shown for direct ring replacement in compatible 4.150 in applications.
Mahle Rings 4.150in Bore .043in 3.00MM Plasma Moly Ductile Ultra Low Tension Reduce Moly Ring Set