20799043 Return Line | Genuine Volvo Penta Part

🔧 Product Description

Formed fluid-transfer component used in the tad650ve turbocharger lubricating-oil drain. It maintains the original bore, routing, connection type and clearance around adjoining engine components. Application note: Later oil-line references apply after the catalogue serial break around 5310377483; confirm the full engine serial before ordering.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD650VE
• Volvo Penta TAD660VE

• Engine Family: TAD
• HP Range: Approximately 250 HP
• Year Range: Approximately 2000s-2010s

⚙️ Key Features

• Turbocharger lubricating-oil drain line
• 0.444 kg
• 2 applications across TAD-series engines
• Return line 20799040 covers the same drain at 0.214 kg - the two are production versions, so confirm the full engine serial number before ordering

🔌 Function

Returns oil from the turbocharger bearing housing to the sump under gravity, so the bearings drain as fast as they are fed.

⚠️ Common Signs of Failure

• Blue smoke from the exhaust and oil in the exhaust or intake pipework as a restricted drain backs oil up past the seals
• Oil weeping or dripping from the drain unions
• Oil sprayed onto the hot exhaust side and a burning smell
• Line found coked, sludged or partly blocked in the bore
• Chafe mark or a crack at a bend or bracket

🛠️ Service Notes

• Two versions of this drain are listed - 20799043 at 0.444 kg and 20799040 at 0.214 kg - so check the full engine serial number and drawing before ordering
• Clear or renew the drain whenever a turbocharger is changed - a restricted drain will push oil past the seals of the new unit
• Renew the union seals rather than refitting them

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 3801140 turbocharger
• 21100925 later oil-return line after applicable serial break
• 20405790 gasket
• 20405822 O-rings
• 20405789 retainer
• 20798726 and 21100930 oil-feed-line references
• 20450987 clamp
• 25167 hollow screw
• 21022795 sealing ring
• 20559835 gasket
• 20464423 exhaust pipe
• 20557208 exhaust gasket

OEM Reman Alternatives

• 3802194 exchange turbocharger

📦 Condition

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