SIERRA WATER PUMP IMPELLER - MERCURY/MARINER - S18-3063
| PART NUMBER | MARINER MODELS | S/N CODE | S/N |
| S18-3063 | 8A(M) | 655 | 000000-000300 |
| 8A(ML) | 655 | 000000-300101 | |
| 8B(M) | 677 | 000101 & Up | |
| 8B(ML) | 677 | 300101 & Up | |
| 15A(M) | 651 | 000285 & Below | |
| 15A(ML) | 651 | 3000100 & Below |