500; 500A; 501A Cooling System Sea Water Pump: 856952 Parts on group Sea Water Pump: 856952: Pos. Part No Qty Parts name Comments 1. 856952 [1] Sea water pump SN 4100126510- 2. 3. 841609 [1] Cap 4. 21951334 [1] Screw kit 5. 856951 [1] Bearing carrier 6. 841608 [1] Cam 7. 841694 [1] Screw 8. 875811 [1] Impeller kit 9. 841610 [1] Gasket 10. 183861 [1] Ball bearing 11. 827247 [1] Sealing ring Parts catalog : Sea Water Pump: 841640 Inlet Manifold 501A Inlet Manifold: B 501A Inlet Manifold: A 500A Exhaust Manifold 501A Exhaust Manifold 500A, 501A