Parts list: № Number Qty Name Options 1 R503880 1 Pulley (FOR SHORT BLOCK RE520377) 2 R515040 1 Bushing (FOR SHORT BLOCK RE520377) OD = 50 mm 3 R516648 1 Cap Screw (FOR SHORT BLOCK RE520377) M20 X 70 Next page: ST180488 ADAPTER FRONT PTO FOR CRANKSHAFT WITH STRAIGHT NOSE ST180489 PULLEY ADAPTER FRONT PTO FOR CRANKSHAFT WITH TAPER NOSE ST180492 FLYWHEEL HOUSING - EARLY DESIGN ST180493 FLYWHEEL HOUSING - LATE DESIGN (CONVERSION PARTS) ST180494 ENGINE FRONT BRACKETS ST180486 CRANKSHAFT PULLEY FOR CRANKSHAFT WITH STRAIGHT NOSE ST180485 THERMOSTAT HOUSING / BY PASS TUBE TO WATER PUMP ST180483 THERMOSTAT COVER ST180481 FRONT PLATE AND UPPER IDLE GEAR ST180478 TIMING GEAR COVER, WATER PUMP (ALUMINIUM, W/O INSERT), LOWER IDLE GEAR