Sierra Item # | OE/Competitor # | Quantity | Description | Image | Comments |
18-2823 | GLM Mallory Mercruiser Stern Drive Mercury Marine
| 1 | Lower Water Pump Gasket | | N/A |
18-2824 | GLM Mallory Mercury Marine
| 1 | Upper Water Pump Gasket | | N/A |
18-2825 | GLM Mallory Mercury Marine
| 1 | Water Pump Base Gasket | | N/A |
18-2841 | GLM Mallory Mercury Marine
| 1 | Water Pump Base Gasket | | N/A |
18-2945 | Chrysler/Force/US Marine Johnson/Evinrude Outboard Mallory Mercruiser Stern Drive
- 12-19183
- 12-191832
- 12-191833
- 12-19183B
- 12-20260
- 12-20260B
Mercury Marine
- 12-19183
- 12-191832
- 12-191833
- 12-20260
| 2 | Drain Screw Gasket | | N/A |
18-2948 | GLM Mallory Mercruiser Stern Drive Mercury Marine
- 12-49221
- 12-492211
- 27-23245
Mercury Sport Jet
| 1 | Rubber Washer | | N/A |
18-3007 | GLM Mallory Mercruiser Stern Drive Mercury Marine
- 47-20268
- 47-65959
- 47-89983
- 47-89983T
| 1 | Impeller | | N/A |
18-3107 | GLM Mallory Mercury Marine
| 1 | Impeller Plate | | N/A |
18-3118 | GLM Mallory Mercury Marine
- 46-48746A1
- 46-48746A3
- 46-77822A1
| 1 | Water Pump Housing | | N/A |
18-3422 | GLM Mallory Mercury Marine
- 46-48745A1
- 46-65498A1
- 46-68390A1
- 46-73842A2
- 46-77516A1
| 1 | Water Pump Base | | N/A |
18-7115 | GLM Johnson/Evinrude Outboard Mercruiser Stern Drive Mercury Marine OMC Stern Drive
| 1 | O-Ring | | N/A |
18-7155 | Chrysler/Force/US Marine GLM Johnson/Evinrude Outboard Mallory Mercruiser Stern Drive Mercury Marine Yamaha Outboard
| 1 | O-Ring | | N/A |
18-7174 | Chrysler/Force/US Marine GLM Johnson/Evinrude Outboard Mallory Mercruiser Stern Drive Mercury Marine Mercury Sport Jet OMC Stern Drive
| 1 | O-Ring | | N/A |
18-0539 | GLM Mercury Marine
| 1 | Exhaust Leg Rubber Seal | | N/A |