859809 Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta hose running from the sea water pump to the heat exchanger, from the Cooling System group, weighing 0.068 kg and listed for 3 applications across the TMD and MD series. For TMD22A it is listed against 868341, so check that reference as well as the routing before ordering.

🚤 Compatibility

Typically suits:

• Volvo Penta TMD22A
• Volvo Penta MD22A
• Volvo Penta MD22L

• Engine Family: TMD, MD

⚙️ Key Features

• Runs from the sea water pump to the heat exchanger
• For TMD22A, listed against 868341
• 0.068 kg
• 3 applications across the TMD and MD series

🔌 Function

Carries raw sea water from the pump to the heat exchanger, delivering the cooling flow that takes the heat out of the engine's closed circuit.

⚠️ Common Signs of Failure

• Sea water weeping or dripping into the bilge below the run
• Salt crust building at a clip or a stub pipe
• Hose swollen and soft, or hardened and crazed
• Hose collapsing under suction when the engine is revved
• Engine running hot because raw water flow has been restricted

🛠️ Service Notes

• Renew the clips with the hose — a raw water hose that lets go on the suction side will draw air and stop the cooling flow, and on the pressure side it will fill the bilge
• Check the sea water pump and its impeller at the same time; seawater pump 859824 is listed in this run
• Order by the routing and the TMD22A reference as well as the number

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging