5.0GXi-270-R Cooling System Circulation Pump 5.0GXi-270-R Parts on group Circulation Pump: Pos. Part No Qty Parts name Comments 1. 3853850 [1] Circulation pump 2. 3852477 [2] Gasket 3. 3856147 [2] Stud 4. 3853403 [1] Nut retainer 5. 3856137 [1] Bolt 6. 3856136 [1] Bolt 7. 3860083 [1] Pulley 8. 3863054 [4] Flange screw 9. 3863438 [1] Hose clamp 10. Thermostat housing or heat exchanger Parts catalog : Seawater System, Gimbal to Heat Exchanger 5.0GXi-270-R Seawater System, Thermostat Housing to Exhaust 5.0GXi-270-R Seawater System, Gimbal to Seawater Pump 5.0GXi-270-R Closed Cooling System: Thermostat and Expansion Tank 5.0GXi-270-R Closed Cooling System: Heat Exchanger 5.0GXi-270-R Seawater Pump Parts 5.0GXi-270-R Hot Water Outlet 5.0GXi-270-R