- Engine:
- 3600 Diesel
- C280 Diesel
- G3600
Description of Change: Changes have been made in order to improve the reliability of water pumps in the above listed engines.
An improved seal group is used. The new seal has a face that is made from graphite loaded silicon carbide. The new material will increase the life of the sealing faces.
A new spacer is used with the impeller retaining bolt. The new spacer is used to allow more accurate torquing of the impeller retaining bolt so that the bolt will not work loose.
Adaptable To: The 118-8086 Face Seal Group and the 9Y-5632 Face Seal Group have been cancelled and replaced by the 292-5982 Face Seal Group .
The new 301-9585 Spacer can be used for a sea water pump or for a jacket water pump. The 4W-0234 Spacer is less expensive to use for a jacket water pump. The 301-9585 Spacer replaces several former parts. Refer to Table 1.
The new parts have the same dimensions as the former parts and can be used in the former pumps without modifications.
The new parts for the water pumps are adaptable to the engines that are listed above. Serial number effectivity is listed in Table 2.
| Former Parts and New Parts | ||||||
| Former Part | New Part | Former Part | New Part | Former Part | New Part | Usage |
| Pump | Pump | Spacer | Spacer | Seal | Seal | |
| 7E-3172 | 304-4942 | 4W-0234 | 118-8086 | 292-5982 | Standard Jacket water pump for 3606 and 3608 engines | |
| 7E-8179 | 304-4948 | 4W-0234 | 118-8086 | 292-5982 | Standard Jacket water pump for 3608, 3612, and 3616 engines | |
| 7E-4358 | 304-4957 | 257-5138 | 301-9585 | 9Y-5632 | 292-5982 | Standard sea water pump |
| 130-0475 | 304-4966 | 7W-0896 | 301-9585 | 9Y-5632 | 292-5982 | High capacity sea water pump (reverse rotation) |
| 130-0477 | 269-8303 | 7W-0896 | 301-9585 | 9Y-5632 | 292-5982 | High capacity sea water pump (standard rotation) |
| 259-1984 | 304-4968 | 257-5138 | 301-9585 | 9Y-5632 | 292-5982 | High capacity sea water pump (standard rotation) for 3618 engines |
 | |
| Illustration 1 | g01432228 |
Typical example (1) Spacer (2) Seal | |
| Serial Number Effectivity | |
| Model | Serial Number |
| G3606 | S/N:3XF00375-UP |
| G3606 | S/N:4ZS00867-UP |
| 3606 | S/N:8RB00981-UP |
| G3608 | S/N:4WF00249-UP |
| G3608 | S/N:BEN00416-UP |
| 3608 | S/N:5PG00106-UP |
| 3608 | S/N:6MC00772-UP |
| 3608 | S/N:1ZD00036-UP |
| 3608 | S/N:7WR00041-UP |
| 3608 | S/N:8LL00034-UP |
| G3612 | S/N:1YG00261-UP |
| G3612 | S/N:BKE00401-UP |
| 3612 | S/N:2NZ00176-UP |
| 3612 | S/N:9FR00021-UP |
| 3612 | S/N:9RC00491-UP |
| 3612 | S/N:NZA00111-UP |
| G3616 | S/N:4CG00248-UP |
| G3616 | S/N:BLB00386-UP |
| G3616 | S/N:CPG00256-UP |
| 3616 | S/N:1FN00150-UP |
| 3616 | S/N:1PD00524-UP |
| 3616 | S/N:RMN00113-UP |
| 3616 | S/N:ZYD00102-UP |
| C280-6 | S/N:LDL00106-UP |
| C280-8 | S/N:NDT00102-UP |
| C280-8 | S/N:PKA00106-UP |
| C280-12 | S/N:RDW00101-UP |
| C280-12 | S/N:TSJ00104-UP |
| C280-16 | S/N:NKB00116-UP |
| C280-16 | S/N:TDX00133-UP |