Other part numbers starting 121
| 1210474 | Bolts | |||
| 121×1050-1 | Cover | |||
| 121×1078 | Seal | |||
| 121×1081 | Gasket | |||
| 121×1174 | O ring | |||
| 121×1220-1 | Cylinder assembly | |||
| 121×1229 | Mfi water jacket | |||
| 121×1233-1 | Cylinder assembly | |||
| 121×1244-2 | Liner valve guide spring | |||
| 121×1246 | Eb-liner | |||
| 121×1250-1 | Eb-liner chrome | |||
| 121×1254 | Liner chrome valve guide | |||
| 121×1260-2 | Cylinder assembly | |||
| 121×1264-2 | Cylinder assembly(chrome) | |||
| 121×1301 | Mfi power pack | |||
| 121×1311 | Efi power assembly | |||
| 121209 | Pipe connector | |||
| 121210 | Pipe nipple 1/4 x 4 1/2 | |||
| 121323 | Connector | |||
| 121574 | Nut | |||
| 121749 | Screw brush lead | |||
| 121758 | Nut hexagon |