21385273 Air Vent Hose | Genuine Volvo Penta Part

🔧 Product Description

Genuine vent hose used in the fuel-system installation of Volvo Penta D13 marine propulsion, auxiliary and generating-set engines. It provides the specified route for air and fuel vapour movement while maintaining a sealed, fuel-resistant connection between the designated fittings.

🚤 Compatibility

• Engine Family: D

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta fuel-system vent hose
• Fuel-resistant construction
• Preformed for the designated D13 installation
• Helps prevent trapped air within the fuel system
• Maintains correct routing away from heat and moving components
• Suitable for propulsion, auxiliary and generating-set D13 engines

🔌 Function

The hose vents trapped air or fuel vapour through the intended fuel-system path. A sealed and unobstructed vent connection helps maintain stable fuel delivery and prevents air from being drawn into the system.

⚠️ Common Signs of Failure

• Diesel fuel seepage around the hose or fittings
• Strong fuel odour in the engine compartment
• Visible cracking, hardening or swelling
• Air entering the fuel circuit
• Extended cranking or difficult starting
• Unstable engine operation after filter servicing
• Wetness around the vent-hose connections

🛠️ Service Notes

• Weighs 0.181 kg and is the D13-specific vent hose - Volvo Penta lists several hoses of different lengths under this same fitting, so measure or confirm the routed length against your engine's parts list rather than ordering by name alone
• Keep the fuel-resistant hose clear of hot exhaust components and moving parts along its route, exactly as specified for the D13 fuel system

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21385273 → Supersedes 3889703

OEM / Related Numbers

• 3889703 earlier number superseded by this part

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C4-B MH, D13C1-B MH, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-L MP, D13B-E MG, D13B-E MG (FE), D13B-E MH, D13B-E MH (FE), D13B-F MG, D13B-F MG (FE), D13B-K MP, D13B-N MH, D13B-N MH (FE), D13B-B MP, D13B-D MP, D13B-J MP, D13B-M MP, D13B-C MP, D13C6-A MP, D13C1-A MH, D13C2-A MH, D13C5-A MP, D13C2-A MG, D13C1-A MG