| Ref. No. | Name of Part | Westerbeke Part Number | Vire Part Number | MMC Part Number | Quantity |
| 1 | Starting wheel / pulley | 18205 | 520 220 | 740 623 | 1 |
| 2 | Screw | 18254 | 520 800 | 740 785 | 4 |
| 3 | Flywheel / pulley | 18206 | 520 660 | - | 1 |
| 4 | Hex. nut M16 | 15814 | 520 870 | 740 806 | 1 |
| 5 | Hex. screw M6 x 15 | 18246 | 520 690 | 740 752 | 4 |
| 6 | Woodruff key for starting wheel | 15891 | 520 780 | 740 779 | 1 |
| 7 | Ball bearing (30mm x 72mm x 19mm) | 18260 | 520 730 | 740 764 | 2 |
| 8 | Crankshaft, front part | 18202 | 520 060 | 740 719 | 1 |
| 9 | Piston complete (including rings & pin) | 18195 | 520 720 | 740 761 | 1 |
| - | Piston complete 0.5 mm oversize (including rings & pin) | 15972 | 522 060 | - | 1 |
| 10 | Piston pin | 15883 | 522 070 | 741 101 | 1 |
| 11 | Circlip for piston pin | 15861 | 522 080 | 741 104 | 2 |
| 12 | Piston ring | 15885 | 522 090 | 741 107 | 2 |
| - | Piston ring 0.5 mm oversize | 15974 | 522 100 | 741 110 | 2 |
| 13 | Piston ring chrome plated | 15973 | 522 110 | 741 113 | 1 |
| - | Piston ring chrome plated 0.5 mm oversize | 15975 | 522 120 | 741 117 | 1 |
| 14 | Small end bushing / needle bearing (17mm x 22mm x 20mm) | 15880 | 520 120 | - | 1 |
| 15 | Connecting rod | 18196 | 520 110 | - | 1 |
| 16 | Bearing of the connecting rod / big-end bearing (25mm x 35mm x 20mm) | 15848 | 520 130 | - | 1 |
| 17 | Crank pin | 18261 | 520 080 | 740 587 | 1 |
| 18 | Rear part of the crankshaft | 18203 | 520 070 | - | 1 |
| - | Crankshaft assembly complete (Part 8 and Parts 14 to 18) | | 520 050 | - | 1 |