21553316 Oil Line | Genuine Volvo Penta Part

🔧 Product Description

A rigid pressure-oil line used to feed lubricating oil to the turbocharger on later-production Volvo Penta TAD650VE and TAD660VE engines.

⚙️ Key Features

• Turbocharger pressure-oil supply
• Applicable from engine serial number 10520360 onward
• Precision-formed steel line
• Designed for turbocharger 3801364
• Uses the factory hollow screw, gaskets and clamp

🔌 Function

The line delivers pressurised engine oil to the turbocharger bearing housing for lubrication and cooling.

⚠️ Common Signs of Failure

• Oil leakage at the turbocharger or hollow screw
• Restricted oil supply
• Turbocharger bearing noise
• Blue smoke caused by turbo damage
• Cracked or vibration-fatigued pipe

🛠️ 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

• 21553316 → Supersedes 21134371 → Supersedes 20798715

OEM / Related Numbers

• 21134371 earlier number superseded by this part
• 20798715 earlier number superseded by this part
• 3801364 - Related turbocharger
• 21134532 - Turbocharger oil return line
• 20405822 - O-ring
• 20405790 - Gasket
• 20450987 - Clamp
• 25167 - Hollow screw

📦 Condition

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