22304281 Oil Return Pipe | Genuine Volvo Penta Part

🔧 Product Description

Oil return pipe in the closed crankcase-ventilation system of TAD540VE, TAD541VE and TAD542VE engines. It works with breather pipes 22084959 and 22084936 and returns separated oil to the engine.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD840GE
• Volvo Penta TAD552VE
• Volvo Penta TAD853VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD570-71VE-B
• Volvo Penta TAD550-51VE
• Volvo Penta TAD540-42VE
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta TAD870-73VE

• Engine Family: TAD

⚙️ Key Features

• Exact TAD540-TAD542VE application
• Closed crankcase-ventilation oil drain
• Works with breather pipes 22084959 and 22084936
• Factory downhill routing
• Oil- and temperature-resistant construction
• Engine type: 4-cylinder turbocharged industrial diesel

🔌 Function

Returns oil captured by the crankcase-ventilation separator to the crankcase.

⚠️ Common Signs of Failure

• Restricted return causing oil carry-over
• Cracked or chafed pipe
• Oil accumulation around separator

🛠️ 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 Supersession Chain

• 22304281 → Supersedes 22212948

OEM / Related Numbers

• 22212948 earlier number superseded by this part
• 22084959 (breather pipes)
• 22084936 (breather pipes)
• 21719553 (related separator)

📦 Condition

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