Mercury Force 50 H.P. 1990, Fuel Pump - parts catalog
USA - EU
Fuel Pump
(1990) - 507A90A, 507F90A, 507X90A, 507Y90A, 508F90A| Parts Diagram | ## | Part # | Description | Qty | Notes |
 | 1 | 817870A1 | Cover, fuel pump | 1 | discontinued w/literature, replaces F658746-1 |
| 2 | 27-F658803 | Gasket, spacer plate | 1 | ||
| 3 | 27-823606 | Gasket, fuel sediment bowl | 1 | replaces F438617 | |
| 4 | 35-F438653 | Screen, fuel pump | 1 | ||
| 5 | 817066 | Bowl, fuel sediment | 1 | discontinued, replaces F438500 | |
| 6 | 10-41069 | Screw, fuel sediment bowl | 1 | replaces F1648 | |
| 7 | 13-26992 | Lock washer | 4 | replaces F8083 | |
| 8 | 10-F1504 | Slotted fill screw, 1/4 - 20 x 1-1/4 s.s | 4 | ||
| 9 | 54-63933 | Clamp, fuel line | 2 | limited availability, replaces F97772 | |
| 10 | 8M0047428 | Fuel line pump to carburetor | 1 | replaces F434754 | |
| 11 | 22-64705 | Elbow | 1 | replaces F438801 | |
| 12 | 819843T1 | Body, fuel pump | 1 | discontinued, replaces FA686431 | |
| 1 | 10-41069 | Screw, 10 - 24 x 3/4 pan hd screw | 2 | replaces F1648 | |
| 14 | 13-26996 | Lock washer | 2 | replaces F1975 | |
| 15 | F438747 | Diaphragm, fuel pump | 1 | ||
| 16 | 27-820490 | Gasket, fuel pump | 1 | replaces F438760 | |
| 7 | F658836 | Spacer, fuel pump | 1 | ||
| 18 | 11-79989 | Nut, 10 - 24 s.s | 2 | replaces F1473 | |
| 19 | 22-F1789 | Pipe plug - 1/16 - 27 | 1 | discontinued | |
| 20 | 1 | Hose, impulse | 1 | replaces F658758 | |
| 21 | 10-F1922 | Hex hd screw, 1/4 - 20 x 5/8 gr. 5 | 3 | discontinued | |
| 22 | 27-820500A3 | Gasket, transfer port cover | 1 | replaces F40223 | |
| 23 | 27-F84792 | Gasket, fuel pump valve | 1 | ||
| 24 | 21-F177330 | Valve, fuel pump | 3 | ||
| 25 | 10-28430 | Slotted binding head screw, 6 - 32 x 1/4 | 2 | replaces F1860 | |
| 26 | 817918A2 | Fuel pump complete | 1 | discontinued |
Parts list covers the following S/N:
507A90A, 507F90A, 507X90A, 507Y90A, 508F90A
