Parts list: № Number Qty Name Options 1 R74354 1 O-Ring (SUB RE55343 AND R113752) 2 AR62978 1 PINION 3 T20091 1 DOWEL PIN 4 AR62979 1 HOUSING (MARKED R54615) (SUB RE55343 AND R113752) 5 R54614 1 GEAR (7 TEETH) 6 RE15381 1 OIL PUMP (SUB RE55343 AND R113752) Next page: 10-19D REPLACEMENT ENGINE OIL PUMP [01C01] 10-19E ENGINE OIL PUMP KIT (ENGINE SERIAL NO. 200851-248020) (MANUFACTURED 1971-1972) [01C02] 10-2 CYLINDER BLOCK (329 CUBIC INCH ENGINE) (DUBUQUE SERIAL NO. 121500-166987) (WELLAND SERIAL NO. 85200-XXXXX) [01A22] 10-20 TIMING GEAR COVER (DUBUQUE SERIAL NO. -121499) (WELLAND SERIAL NO. -85199) [01C03] 10-21 TIMING GEAR COVER (DUBUQUE SERIAL NO. 121500- ) (WELLAND SERIAL NO. 85200- ) [01C04] 10-19B ENGINE OIL PUMP [01B24] 10-19A ENGINE OIL PUMP (SERIAL NO. 165890- ) [01B23] 10-19 ENGINE OIL PUMP (SERIAL NO. -165889) [01B22] 10-18B PISTON LINER KIT (ENGINES WITHOUT PISTON SPRAY COOLING) (329 CU. IN. ENGINE WITH HIGH PISTONS) [01B21] 10-18A PISTON LINER KIT (ENGINES WITHOUT PISTON SPRAY COOLING) (329 CU. IN. ENGINE WITH STANDARD PISTONS) [01B20]