23053304 Air Vent Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta air vent pipe from the Cooling System group, weighing 0.311 kg and listed for ten D series engine applications. It supersedes part number 21949609 and lets trapped air escape from the coolant circuit.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C2-B MP
• Volvo Penta D13B-E MG
• Volvo Penta D13B-E MG (FE)
• Volvo Penta D13C4-B MP
• Volvo Penta D13C5-B MP
• Volvo Penta D13C1-B MG
• Volvo Penta D13C3-B MG
• Volvo Penta D13C1-A MG
• Volvo Penta D13C7-B MP
• Volvo Penta D13C8-B MP

• Engine Family: D

⚙️ Key Features

• Air vent pipe from the Cooling System group
• 0.311 kg
• Listed for ten D series engine applications
• Supersedes 21949609

🔌 Function

Lets air trapped at the high points of the coolant circuit bleed back to the expansion tank, so the system fills completely and pockets do not sit against hot metal.

⚠️ Common Signs of Failure

• Persistent air in the system, with the header tank level rising and falling
• Engine overheating in patches or the temperature gauge unsteady
• Coolant weeping at the pipe unions or a damp trail along the run
• Pipe found blocked with scale, or kinked or crushed where it was pushed aside
• Corrosion pinholes in the run at strip-down

🛠️ Service Notes

• Prove the vent line is clear before chasing an overheating fault elsewhere - a blocked vent traps air against the hottest surfaces
• Renew the sealing washers or O-rings at the unions and refill following the correct bleed sequence

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 23053304 → Supersedes 21949609

OEM / Related Numbers

• 21949609 earlier number superseded by this part

📦 Condition

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