CP 1.2mm Steel Napier Back Cut Second Piston Ring 3.76in Bore w/ Taper Hook Groove (Single)

This 1.2mm steel second piston ring features a Napier back cut and a taper hook groove, designed for a 3.76-inch bore. The Napier design helps prevent oil from passing into the combustion chamber, while the back cut aids in proper ring seal and reduces drag. The taper hook groove is a specific design choice that helps the ring seat correctly and maintain tension under pressure.

Constructed from durable steel, this ring is built to withstand the high temperatures and pressures found in performance engines. The 1.2mm thickness is a common specification for many performance applications, offering a good balance between sealing ability and reduced friction. This single ring is intended as a replacement for one piston.