| Ref. No. | Name of Part | Westerbeke Part Number | Vire Part Number | MMC Part Number | Quantity |
| 1 | Case /housing | 18213 | 521 170 | 740 896 | 1 |
| 2 | Cylinder split pin / cotter pin | 15840 | 520 920 | 740 821 | 2 |
| 3 | Shaft pin | 15899 | 521 490 | 740 960 | 1 |
| 4 | Washer | 15900 | 521 500 | 740 963 | 2 |
| 5 | Gear wheel | 15901 | 521 510 | 740 966 | 1 |
| 6 | Ball bearing | 15845 | 331 240 | 740 357 | 2 |
| 7 | Retaining ring / circlip | 15862 | 306 120 | 740 318 | 1 |
| 8 | Circlip | 15859 | 521 640 | - | 1 |
| 9 | | | | | |
| 10 | Locking plug | 18230 | 521 570 | 740 984 | 1 |
| 11 | | | | | |
| 12 | Elastic pin | 18256 | 521 720 | 741 026 | 1 |
| 13 | Ball knob | 18225 | 521 740 | 741 032 | 1 |
| 14 | Coupling rod / lever | 18229 | 521 250 | - | 1 |
| 15 | Spring | 15871 | 521 480 | 740 957 | 1 |
| 16 | | | | | |
| 17 | Elastic disc / washer 8mm | - | 334 160 | 740 390 | 6 |
| 18 | Hex. screw M8 x 30 | 15821 | 307 510 | 740 342 | 6 |
| 19 | Dip-stick | 18214 | 521 190 | 740 902 | 1 |
| 20 | Magnetic drain plug M12 x 1.25 | 15944 | 521 680 | 741 014 | 1 |
| 21 | Gasket for magnet plug | - | 534 370 | 741 402 | 1 |