11128938 Oil Return Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta oil return pipe from the Lubricating and Oil System group, part number 11128938. It routes drained lubricating oil back to the engine sump, and is specified for TAD1250VE, TAD1251VE and TAD1252VE industrial engines. Net weight is approximately 0.19 kg.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1250VE
• Volvo Penta TAD1251VE
• Volvo Penta TAD1252VE
• Volvo Penta TAD1250-52VE

• Engine Family: TAD
• HP Range: Approximately 350-500 HP
• Year Range: Approximately late 1990s - 2000s

⚙️ Key Features

• OEM Volvo Penta part number 11128938
• System group: Lubricating and Oil System
• Net weight approximately 0.19 kg
• Fits TAD1250VE series industrial diesel engines
• Engine type: Volvo Penta inline 6-cylinder 12-litre turbocharged diesel

🔌 Function

The oil return pipe carries lubricating oil back to the engine sump after it has passed through a component such as the turbocharger or a related oil circuit. It maintains the closed drain path so oil circulation and sump level remain correct under load.

⚠️ Common Signs of Failure

• External oil leakage or weeping at the pipe body or connection points
• Oil pooling beneath the engine or oil residue tracking along the pipe run
• Cracked, chafed or corroded pipe wall from vibration and heat cycling
• Restricted or blocked return flow causing oil backup at the source component, such as turbocharger seal leakage
• Loose, distorted or damaged flange and sealing faces that will not seal on retightening

🛠️ Service Notes

• Always fit new gaskets, O-rings or sealing washers — these joints see hot oil and a reused seal rarely holds
• Check the pipe is clear before it goes back on; if the bore is coked or sludged, renew it rather than trying to clean it out, because a restricted return backs oil up and pushes it past seals
• Route the pipe so it runs downhill to its outlet with no kinks, sags or strain, and do not spring it into place to make the flanges meet
• Clean the sealing faces without scoring them, and tighten the flange or union fasteners evenly to the figure in the workshop manual for your engine — these often thread into alloy and strip easily
• Run the engine up to temperature afterwards and check the joints while hot, since a marginal seal will often only weep once everything has expanded

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3587945 - Related turbocharger
• 11423115 - Related turbo oil-pressure pipe
• 8192268 - Related flange
• 976971 - Related O-ring
• 420641 - Related gaskets
• 420643 - Related gaskets
• 8148729 - Related connector
• 469543 - Related pipe flange
• 469601 - Related sealing rings
• 1547255 - Related sealing rings

OEM Reman Alternatives

• 3802154 - Related remanufactured turbocharger

📦 Condition

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