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The CP Pistons 3.0mm oil ring is a replacement piston ring engineered for oil control in high-output engines. Sourced from a brand known for forged pistons and rings, it supports custom-built and high-power applications where durable sealing and consistent oil management matter. Specifications note a 3.327" bore reference and a 3.0mm oil ring section to match rebuild or performance builds.
CP Pistons Ring 3.0mm Oil Ring 3.327 Bore R0 .125
