| 1 | Crankshaft (1000Cc) | 21050400101 | 1 | 0 | |
| 2 | Woodruff key 4×5 | 21040107701 | 1 | 1 | |
| 3 | Connecting Rod Assy | 21050400200 | 2 | -3 | |
| 4 | Connecting Rod Screw M9×1/45 | 21050400231 | 4 | 2 | |
| 5 | Plain Bearing | 21050400501 | 4 | 0 | |
| 6 | Piston , 90.55 mm | 21050400600 | 2 | 12 | |
| 7 | First piston ring | 21040108301 | 2 | 35 | |
| 8 | Second piston ring | 21040108401 | 2 | 34 | |
| 9 | Scraper ring | 21040108501 | 4 | 22 | |
| 10 | Oil ring | 21040108601 | 2 | 27 | |
| 11 | Piston Pin | 21050400801 | 2 | 46 | |
| 12 | Piston Circlip | 21050400901 | 4 | 21 | |
| 13 | Gasket | 21040408902 | 2 | 45 | |
| 14 | Cylinder With Sleeve, Front | 21050401102 | 2 | 2 | |
| 15 | Drive pin 5×11 | 21040105502 | 4 | 12 | |
| 16 | Cylinder With Sleeve, Rear | 21050401202 | 2 | 5 | |
