21140526 Return Line | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta turbocharger oil-return line for TAD761VE-series engines. The formed line drains hot oil from the turbocharger bearing housing into the crankcase with the correct downward fall and flange alignment.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD765VE
• Volvo Penta TAD764VE
• Volvo Penta TAD763VE
• Volvo Penta TAD762VE
• Volvo Penta TAD761VE

• Engine Family: TAD

⚙️ Key Features

• Gravity-drain turbo oil-return line
• Correct route for the TAD76xVE turbocharger installation
• Uses O-rings 993413 and 20405822 at the specified joints
• Matched to turbocharger 21684091 / exchange 3801460
• Line only; seals and fasteners are separate
• Engine type: Volvo Penta 7-litre industrial diesel

🔌 Function

Returns lubricating oil from the turbocharger to the crankcase without restriction or oil pooling in the bearing housing.

⚠️ Common Signs of Failure

• Oil leakage at the return flange
• Blue smoke from restricted drainage
• Coking or sludge inside the line
• Cracks caused by vibration
• Turbo seal leakage from excessive return-line backpressure

🛠️ Service Notes

• Renew the sealing washers, O-rings or gaskets at each end rather than reusing them, and check the union faces are clean and unmarked
• Fit the line without pulling it into place; a return line that has to be strained to line up will crack or chafe through in service
• Keep the original routing, clips and protective sleeving so the line stays clear of hot and moving parts and cannot rub
• Do not kink a line, and do not straighten and re-bend a formed metal one — cap the open ends while the system is apart so no dirt gets in
• Tighten the unions to the figures given in the workshop manual for your engine, then run up and check both ends for weeps before closing the access

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21140526 → Supersedes 21110675

OEM / Related Numbers

• 21110675 earlier number superseded by this part
• Turbocharger 21684091
• Companion oil line 21110664

Other-Brand OEM Numbers

• VOE21140526

OEM Reman Alternatives

• Exchange turbocharger 3801460

📦 Condition

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