3839383 Air Vent Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta air vent hose, 730 mm long, from the Cooling System group, weighing 0.227 kg and listed for 5 applications across D and MD series engines. Air vent hose 3839384 is the 995 mm version, so length is the deciding detail.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, MD

⚙️ Key Features

• 730 mm long
• 0.227 kg
• 5 applications across D and MD series engines
• Cooling System venting line
• L=730mm (Volvo assembly listing)

🔌 Function

Carries air out of the top of the cooling circuit to the expansion tank so the system can vent itself and no air pocket is left to cause hot spots.

⚠️ Common Signs of Failure

• Engine overheating with air trapped in the circuit
• Coolant weeping at a hose end
• Hose cracked, hardened or chafed
• Hose kinked or collapsed and no longer venting
• Coolant level dropping slowly with no visible leak

🛠️ Service Notes

• Measure before ordering — this is the 730 mm hose and 3839384 is the 995 mm version
• Route the vent hose continuously uphill so it can actually vent, and refill and bleed the system fully after fitting

📦 Condition

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