20759472 Fuel Pipe | Genuine Volvo Penta Part

🔧 Product Description

Application-specific fuel return pipe used in the mechanical injection-pump, injector leak-off and high-pressure fuel piping on the listed Volvo Penta engines. Returns excess fuel through the documented mechanical-injection return circuit.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-TA
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, MD
• HP Range: Approximately 100-250 HP
• Year Range: Approximately 1998 - 2008

⚙️ Key Features

• Genuine Volvo Penta fuel return pipe
• Designed for the mechanical injection-pump, injector leak-off and high-pressure fuel piping
• Returns excess fuel through the documented mechanical-injection return circuit
• Jacketed pressure-pipe arrangements use engine-specific serial breaks, including D5A T-A SN 980120-, D5A TA-A SN 991715-, D7A T-A SN 975806-, D7C TA-A SN 977117- and D7A TA-A SN 977118-.
• Engine type: Four- and six-cylinder mechanically injected industrial diesel

🔌 Function

Returns excess fuel through the documented mechanical-injection return circuit.

⚠️ Common Signs of Failure

• Fuel weeping or dripping along the return pipe run
• A strong diesel smell around the engine and wet staining below the connections
• Rough running or slow restarting as air is drawn into the return circuit
• On strip-down the pipe is split, chafed or corroded, typically at a bend or clamping point
• Flattened sealing washers and thread damage at the unions

🛠️ Service Notes

• Renew all disturbed sealing washers, O-rings, grommets and hose clamps.
• Confirm the pipe is naturally aligned before tightening; do not pull it into position with the fasteners.

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20759472 → Supersedes 20798503

OEM / Related Numbers

• 20500360 - injection pump
• 888874 - injector
• 888761 - injector nozzle
• 11700426 - injector sealing washer
• 11700424 - pipe retainer/bracket
• 20405559 - six-point screw
• 20405847 - delivery valve
• 888768 - leak-off pipes
• 888875 - leak-off pipes
• 888762 - delivery pipe
• 888766 - hollow screws
• 888767 - hollow screws
• 969011 - sealing gaskets
• 947620 - sealing gaskets

Other-Brand OEM Numbers

• VOE20759472 - Volvo CE prefixed number format

OEM Reman Alternatives

• 3803967 - exchange injection pump

📦 Condition

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