SIERRA WATER PUMP IMPELLERS - YAMAHA - S18-3074
| PART NUMBER | HP MODEL | YEAR | DAMPER SEAL | KIT WITHOUT HOUSING | KIT WITH HOUSING |
| S18-3074 | F9.9 | 1985-05 | S18-1834 | S18-3148 | S18-3411 |
| FT9.9 | 1985-90 | S18-1834 | S18-3148 | S18-3411 | |
| T9.9 | 1985-05 | S18-1834 | S18-3148 | S18-3411 | |
| 9.9 | 1984-95 | S18-1834 | S18-3148 | S18-3411 | |
| 15 | 1984-95 | S18-1834 | S18-3148 | S18-3411 |