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This CP Pistons set is specified for BMW N20B20/N55B30/S55B30 four-cylinder applications with an 84mm bore and a standard -9.7cc piston volume, supplied as a set of four. The listing defines bore size and displacement correction for matching cylinder geometry and is intended for rebuilds or engine assemblies requiring these exact piston specifications.
CP Piston BMW N20B20/N55B30/S55B30 (4 Cyl) 84mm Bore -9.7cc STD Piston - Set of 4
