Our goal is to help you obtain the correct parts on the first call. If you did not find the boat parts you were looking for or if you have any questions, please call us at 800-364-4637.
| Model | Serial Number | Complete Water Pump Kit | Upper Pump Housing | Upper Pump Kit | Water Pump Base | Impeller Repair Kit | Impeller |
| #1 Units with plastic flush screw in gear housing | 2495186-2763441 | 18-3321 | 18-3116 | 18-3517 | 18-3421 | 18-3217 | 18-3017 |
| #1 Units/R w/o flush screw In gear housing | 2763442-6854392 | 18-3317 | 18-3116 | 18-3517 | 18-3417 | 18-3217 | 18-3017 |
| MR/ALPHA I | 6854393 - D594568 | 18-3320 | 18-3116 | 18-3517 | 18-3420 | 18-3217 | 18-3017 |
| ALPHA I - Generation II | D494S69 & ABOVE | — | 18-3147 | , — | — | 18-3214 | 18-3056 |
| BRAVO/lnboards with externally mounted pump | 3040411 & ABOVE | — | — | — | — | — | 18-3087 |
| (1) Models which have been retro-fitted with an Alpha style lower unit (no pre-load pin in top of driveshaft) must use Alpha style parts (18-3320 and 18-3420) | |||||||