This CP Pistons set serves BMW N55B30 and S55B30 six-cylinder engines with an 84mm bore and a standard -9.7cc piston volume, supplied as a set of six. The set specifies bore and piston volume to match the listed engine families and is intended for use where those dimensions are required for proper engine assembly or overhaul.
CP Piston BMW N55B30/S55B30 (6 Cyl) 84mm Bore -9.7cc STD Piston - Set of 6