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The CP Pistons piston and ring set for first‑generation Mitsubishi 4G63 is a single replacement piston specified for an 85.5mm bore with +0.5mm oversize and a 9:1 compression ratio. Supplied as a piston-and-ring package, it’s intended for engine rebuilds where a matched oversize piston and rings are required to restore proper clearances after bore machining.
CP Piston & Ring Set for Mitsu 1st Gen 4G63 - Bore (85.5mm) - Size (+0.5mm) - CR 9:1 (Single Piston)
