COMPATIBLE MC CULLOCH PISTON FOR POWER SAWS MODELS: PROMAC 36 38 CHARACTERISTICS: Ø PISTON: 40 mm PISTON LENGTH: 28.5 mm Ø OUTSIDE PISTON: 9 mm Ø INSIDE PISTON: 5 mm TOP QUALITY MC CULLOCH Part No.: 54.230.1576 Original part No.: CZ