20459172 O-Ring | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta o-ring used in the turbocharger lubrication and fuel-line assembly. It is supplied as an individual service component under part number 20459172 and is intended to restore the original fit, alignment, sealing, support or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in an parts list for your engine are serviced separately unless explicitly stated.

🚤 Compatibility

Typically suits:

• Volvo Penta TD420VE
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD420VE

• Engine Family: TD, TAD

⚙️ Key Features

• 0.016 kg
• For the turbocharger lubrication and fuel-line assembly
• Listed for 4 applications across TD and TAD series engines
• The 0.005 kg ring 20459193 serves a smaller seat in the same assembly

🔌 Function

Seals a connection in the turbocharger lubrication and fuel-line arrangement, holding oil or fuel pressure at the union face.

⚠️ Common Signs of Failure

• Oil or fuel weeping from the union at the turbocharger
• Smell of hot oil or diesel after a run
• Oily deposits baked onto the pipe and turbo housing
• Turbocharger noise or lag if the oil feed loses pressure past the seal
• Ring found hardened, charred or flattened on removal

🛠️ Service Notes

• Turbo feed joints run hot - fit a new ring rather than reusing one that has been heat-cycled
• Blow the feed pipe through and check it is clear before blaming a seal for low oil supply to the bearing

📦 Condition

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