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The primary OEM part number this kit replaces is 391635
Carefully remove the upper gear housing cover to access the internal components
Replace the O-rings (91301-ZW4-003): Inspect all relevant sealing points and replace worn or compressed O-rings
2 x E-Ring (Replaces 53-815949 / 53-8M0214951)
Start the engine and check for fuel leaks around the filter connections
Bi-Directional Water Pump – Fits Volvo Penta & MerCruiser 4.3L-6.3L Inboard Engines family-yamaha-6mshq The primary OEM part numberBi Directional Water Pump Fits Volvo Penta & MerCruiser 4. 3L 6. 3L Inboard Engines (Replaces 850399002, 3853850) This bi directional water pump is a direct replacement for circulation pumps on a wide range of Volvo Penta and MerCruiser inboard and sterndrive engines, including 4. 3L, 5. 0L, 5. 7L, 6. 2L, and 6. 3L models. It is engineered to meet or exceed original equipment specifications for reliable cooling performance. This part directly replaces
