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CP Pistons 2.0 mm second ring for diesel applications, duct style, sized for a 4.075 in. bore with R2 .166 specification. This second ring is offered for engine rebuilds or repairs where the listed bore and ring dimension match, providing a factory‑style replacement ring for correct sealing and piston ring pack assembly in compatible diesel engines.
CP Pistons 2.0mm Diesel Duct 2nd Ring 4.075 Bore R2 .166
