21683478 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

Rigid coolant-transfer pipe used on Volvo Penta D11B marine engines. It preserves the factory cooling-system route between the engine, heat exchanger and adjoining hose connections.

🚤 Compatibility

Typically suits:

• Volvo Penta D11C1-A MP
• Volvo Penta D11C3-A MP
• Volvo Penta D11C2-A MP
• Volvo Penta D11C4-A MP
• Volvo Penta D11B3-A MP
• Volvo Penta D11B4-A MP
• Volvo Penta D11B2-A MP
• Volvo Penta D11B1-A MP

• Engine Family: D

⚙️ Key Features

• Rigid coolant-transfer pipe
• Listed for 8 applications on D series engines
• Published weight of 0.005 kg is too low for a rigid coolant pipe and should not be used to identify the part

🔌 Function

Carries coolant along a fixed route between the engine, heat exchanger and the hose connections either side of it.

⚠️ Common Signs of Failure

• Coolant loss with staining or white crusting at the pipe ends
• Header tank level dropping with no hose failure to be found
• Sweet smell of coolant in the engine space after running
• Pipe found pitted, corroded through at a bend, or its sealing ends scored

🛠️ Service Notes

• The 0.005 kg figure published against this pipe cannot be right for the part described, so order by part number rather than by weight
• Renew the O-rings or seals at both ends whenever the pipe is removed

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• VOE21683478

📦 Condition

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