21129655 Oil Line | Genuine Volvo Penta Part

🔧 Product Description

A rigid formed line for the electronically controlled volvo penta industrial diesel with scr/adblue aftertreatment installation. It uses the original bore, bends and end fittings to carry oil or another working fluid without placing load on the connected housings.

⚙️ Key Features

• Precision formed routing
• Correct bore for the required flow
• Original sealing-end geometry
• Must be installed without forcing or twisting
• Engine type: Electronically controlled Volvo Penta industrial diesel with SCR/AdBlue aftertreatment

🔌 Function

Carries the assigned lubricating or control fluid through a sealed, supported path.

⚠️ Common Signs of Failure

• Oil leakage at the joint or fitting
• Incorrect or unstable level indication
• Restricted flow or oil backup
• Cracking, chafe or heat damage
• Abnormal oil pressure, smoke or component wear

🛠️ 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

• 21129655 → Supersedes 21086727 → Supersedes 21034678

OEM / Related Numbers

• 21086727 earlier number superseded by this part
• 21034678 earlier number superseded by this part

📦 Condition

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