20405596 Oil Line | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta rigid oil-feed line supplying pressurised engine oil to turbocharger 20405604 on the TD520GE Stage 1 / Tier 1 engine.

🚤 Compatibility

Typically suits:

• Volvo Penta TD520GE
• Volvo Penta TAD520GE
• Volvo Penta TAD520VE

• Engine Family: TD, TAD

⚙️ Key Features

• Factory-formed turbocharger lubricating-oil line
• Confirmed for TD520GE Stage 1 / Tier 1
• Connects through hollow screw 25167 and sealing gaskets
• Designed for full engine-oil pressure and turbocharger heat
• Must be installed without stress, kinks or contact with hot components
• Engine type: Volvo Penta 5-litre four-cylinder turbocharged industrial diesel

🔌 Function

Carries pressurised lubricating oil from the engine oil gallery to the turbocharger bearing housing.

⚠️ Common Signs of Failure

• Oil leakage or wetness along the line
• Restricted or carboned oil passage
• Turbocharger bearing noise
• Cracked line from vibration
• Blue smoke or turbo failure caused by poor oil supply

🛠️ Service Notes

• Work clean and cap or plug both the line and its ports as soon as they are open — anything that gets into an oil line ends up at a bearing or in the turbocharger
• Renew the sealing washers, O-rings or gaskets at each end rather than reusing them, and start unions by hand so the seal is not loaded sideways
• Do not bend or reshape a line to make it reach; a line strained into place fatigues and cracks at the union
• Refit every clip and support bracket in its original position — an unsupported oil line chafes and fails through vibration
• After fitting, check oil level, run the engine and check the unions for leaks and the oil pressure for normal reading, then check again once hot

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20405596 - current TD520GE turbo oil-feed line

OEM / Related Numbers

• 20405604 - turbocharger
• 25167 - hollow screw
• 969011 - sealing gaskets
• 20405595 - sealing gaskets

📦 Condition

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