Parts list: № Number Qty Name Options 1 19M7867 2 Screw M8 X 25 2 R121634 1 Housing 3 R89944 1 O-Ring 50.394 X 3.531 mm (1-63/64" X 0.139") Next page: ST1617970 TIMING GEAR COVER, WATER PUMP (CAST IRON, WITH INSERT), LOWER IDLE GEAR ST1617946 VALVE COVER (CONVERSION PARTS) ST1617976 THERMOSTAT HOUSING / BY PASS TUBE TO WATER PUMP ST1617982 FLYWHEEL HOUSING - EARLY DESIGN ST1618002 LIQUID GASKET, GREASE FOR CAMSHAFT BUSHING, COOLANT ST1617951 WATER TEMPERATURE SENSOR ST1617972 FRONT PLATE AND UPPER IDLE GEAR ST1617956 CRANKSHAFT WITH STRAIGHT NOSE/ BEARINGS ST1617980 PULLEY ADAPTER FRONT PTO FOR CRANKSHAFT WITH TAPER NOSE ST1617973 ENGINE SPEED SENSOR