Brand New 16pc Intake And Exhaust Valve Set for Mercedes OM651 Engines Fitted to a variety of Mercedes Cars - A-Class, B-Class, C-Class, CLA, CLS, E-Class, Fits the Below Mentioned Engine Codes OM 651.924, OM 651925, OM 61.911, OM 651.924, OM 651.930, OM 651.921, OM 651.912, OM 651.911, OM 651.913, OM 651.901 Also suitable for Jeep Compass 2.2 CRD with the OM 651.925 engine Item Specifics for Intake valves- Total Length - 108.95 mm Valve Head diameter - 28.4 mm Valve Stem diameter - 5.96 mm Valve Seat Angle - 45 ° Item Specifics for Exhaust valves- Total Length - 109.2 mm Valve Head diameter - 24.65 mm Valve Stem diameter - 5.96 mm Valve Seat Angle - 45 ° OEM Reference Number for Intake Valves- 6510530101 OEM Reference Number for Exhaust Valves- 6510500127.