| Catalog No. | Stock No. | Description | Optional? |
|---|
| SUPG1561 | 12523411 | Silent Muffler .40-.51 | |
| SUPG1572 | 22482571 | Exhaust Stack GS40-45 | |
| SUPG1803 | 12163145 | Carburetor S40K-S45K/G-51/GS-40/GS-45ABC | |
| SUPG2168 | 22282632 | Back Plate G-40/G-51 | |
| SUPG2355 | 22110247 | Carburetor Retainer Nut Standard | |
| SUPG2385 | 22080212 | Carb Retainer 40-60 | |
| SUPG2596 | 22032683 | Connecting Rod G-51 | |
| SUPG2850 | 22053141 | Crankcase G-51 | |
| SUPG3180 | 22013154 | Crankshaft G-51 Ring | |
| SUPG3935 | 22293178 | Cylinder Head G-51 | |
| SUPG4144 | 22043129 | Cylinder Liner G-51 RC | |
| SUPG4410 | 22121911 | Front Bearing G34 21-60 | |
| SUPG4475 | 22210286 | Fuel Nipple/Pressure Fitting All | |
| SUPG4520 | 22243216 | Engine Gasket Set G-51 | |
| SUPG4730 | 22100234 | Lock Cone .21-.60/G-34 | |
| SUPG4866 | 22262774 | High-Speed Needle 34-4500 R/C | |
| SUPG5090 | 22020562 | Carb O-Ring G60 | |
| SUPG5140 | 22130249 | Wrist Pin Retainer 40-46 | |
| SUPG5242 | 22203177 | Piston G-51 | |
| SUPG5401 | 22232394 | Piston Ring G-51 | |
| SUPG5445 | 22110245 | Prop Nut 21-60 | |
| SUPG5495 | 22121059 | Rear Bearing 40-46/GS-40/GS-45 ABC/G-51 | |
| SUPG5804 | 22252646 | Muffler Screw Set S-40 | |
| SUPG5814 | 22252747 | Engine Screw Set G40 | |
| SUPG5840 | 22220294 | Shaft Spacer Shaft Washer 21-60 | |
| SUPG6375 | 22221058 | Drive Washer .21-.60 | |
| SUPG6405 | 22220291 | Washer Prop 21-60 | |
| SUPG6491 | 22271572 | Wrist Pin G-51 | |
| MACG6620 | 6620 | Muffler 40-45 Bolt Thru | Optional |
| SUPG4661 | 22243220 | Exhaust Stack Gasket GS-40 | Optional |
