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CP Piston single forged piston for BMW N20B20, N55B30 and S55B30 engines, 84mm bore, standard compression with -9.7cc volume. Sold individually for one‑at‑a‑time service or build use, this piston matches the listed BMW applications and is intended for engine rebuilds or replacement where a single forged piston is required for those specific engine families.
CP Piston BMW N20B20/N55B30/S55B30 (4 + 6 Cyl) 84mm Bore -9.7cc STD Piston - SINGLE
