500; 500A; 501A Cooling System Inlet Manifold: B 501A Parts on group Inlet Manifold: B: Pos. Part No Qty Parts name Comments 1. 856076 [1] Inlet manifold 2. 968145 [1] Plug 3. 856365 [1] Gasket kit 4. 835154 [1] Gasket 5. 855597 [4] Screw 6. 855824 [8] Screw 7. 8. 856033 [1] Gasket See group 2C 9. 835630 [1] Temperature sensor See group 3 17. 841261 [1] Sealant See group 9 Parts catalog : Inlet Manifold: A 500A Exhaust Manifold 501A Exhaust Manifold 500A, 501A Cooling System 501A Cooling System 500A, 501A Inlet Manifold 501A Sea Water Pump: 841640 Sea Water Pump: 856952