840731 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta coolant pipe from the Cooling System group running between the thermostat housing and the heat exchanger, weighing 0.118 kg and listed for 10 applications on D series engines. Coolant pipe 840737 is published at the same 0.118 kg but runs from the oil cooler to the cylinder head, so the routing note is the only thing that separates them.

🚤 Compatibility

Typically suits:

• Volvo Penta 2003
• Volvo Penta 2003R
• Volvo Penta D2003AG
• Volvo Penta 2003D
• Volvo Penta 2002AG
• Volvo Penta 2002B
• Volvo Penta 2002BG
• Volvo Penta 2002D
• Volvo Penta 2003B
• Volvo Penta 2002

• Engine Family: D

⚙️ Key Features

• Thermostat housing to heat exchanger
• 0.118 kg
• 10 published applications on D series engines
• Same published weight as coolant pipe 840737 - the route is what separates them

🔌 Function

Carries coolant from the thermostat housing to the heat exchanger along its formed route.

⚠️ Common Signs of Failure

• Coolant weeping at either connection
• Corrosion pits or a pinhole in the wall
• Engine running hot or the thermostat behaving oddly
• Sealing lands scored or eaten away
• Coolant level falling with no obvious drip

🛠️ Service Notes

• Coolant pipe 840737 weighs the same but runs from the oil cooler to the cylinder head, so order by the route and the number
• Check the thermostat and its gasket at the same time, and renew hoses and clamps at both ends

📦 Condition

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