| Catalog No. | Stock No. | Description | Optional? |
| SUPG1562 | 12523412 | Silent Muffler .61-.90 | |
| SUPG1570 | 22482519 | Exhaust Stack S61-90 | |
| SUPG1814 | 12163146 | Carburetor G61/75/90S | |
| SUPG2162 | 22283574 | Back Plate G-90/G-61 Ring | |
| SUPG2355 | 22110247 | Carburetor Retainer Nut Standard | |
| SUPG2412 | 22082378 | Carb Retainer 61-90 | |
| SUPG2575 | 22032121 | Connecting Rod S61-X61/G61 Ring/ABC/X61K RE | |
| SUPG2803 | 22053077 | Crankcase G-61/G-61 ABC | |
| SUPG3272 | 22012445 | Crankshaft S-61/G-61 Ring/ABC/X-61 ABC | |
| SUPG3547 | 22092686 | Cylinder & Piston Assm S-61K ABC | |
| SUPG3923 | 22292525 | Cylinder Head S-61K/G-61 Ring/G-61 ABC | |
| SUPG4405 | 22121908 | Front Bearing 61-90 | |
| SUPG4475 | 22210286 | Fuel Nipple/Pressure Fitting All | |
| SUPG4535 | 22243637 | Engine Gasket Set G-61 | |
| SUPG4735 | 22101912 | Lock Cone .61-.90 | |
| SUPG4785 | 22253579 | Muffler Screw Set G90/GS40/GS45/G51/G61/G75 | |
| SUPG5090 | 22020562 | Carb O-Ring G60 | |
| SUPG5155 | 22131638 | Wrist Pin Retainer S61-X61 | |
| SUPG5460 | 22112167 | Prop Nut S61-S90 | |
| SUPG5520 | 22123543 | Rear Bearing G61/G75/G90 | |
| SUPG5778 | 22253638 | Engine Screw Set G-61 | |
| SUPG5845 | 22220295 | Shaft Spacer/Bearing Washer S61-S90 | |
| SUPG6385 | 22221907 | Drive Washer .61-.90 | |
| SUPG6415 | 22221903 | Washer Prop .61-.90 | |
| SUPG6585 | 22271773 | Wrist Pin S61-X61 | |
| SUPG4662 | 22243221 | Exhaust Stack Gasket G-61 | Optional |