20405567 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta high-pressure pipe connecting each unit injection pump to its injector on D5 and D7 engines. The same part number is used once per cylinder, with four pipes on four-cylinder engines and six on six-cylinder engines.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• High-pressure seamless steel injector pipe
• Four used on four-cylinder engines and six on six-cylinder engines
• Connects each unit injection pump to its matching injector
• Factory union geometry for the original pump and injector
• Requires correct support, clean sealing cones and specified union torque
• Engine type: Volvo Penta 5- and 7-litre industrial diesel
• Quantity varies by assembly, most commonly four

🔌 Function

Transfers each high-pressure fuel pulse from the unit pump to the matching injector.

⚠️ Common Signs of Failure

• Diesel leakage at a union
• Cylinder misfire or low power
• Pipe fatigue cracking
• Fuel spray or pressure loss

🛠️ Service Notes

• Offer the pipe up and check it reaches both connections freely before you tighten anything — a rigid pipe pulled into place is a pipe left under permanent strain, and strained pipes crack at the fittings in service
• Renew the sealing washers, O-rings or union seals that go with the pipe rather than reusing the old ones, and make sure the seats, faces and threads are clean
• Keep the ends capped while you work and blow or flush a pipe through before fitting; anything left inside goes straight into the oil, fuel or coolant system
• Tighten unions and banjo bolts evenly to the figures in the workshop manual for your engine — overtightening distorts the seat and starts the leak you were trying to cure
• Refit every clip and support bracket in its original place and keep the pipe clear of hot or moving parts so it cannot chafe or be shaken to failure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20500360 - related Stage 2 injection pumps
• 3803967 - related Stage 2 injection pumps
• 11700423 - related Stage 1 injection pumps
• 3803515 - related Stage 1 injection pumps
• 20550001 - related hydraulic-tappet pump references
• 3803987 - related hydraulic-tappet pump references
• 20502189 - related injectors
• 3803948 - related injectors
• 20550303 - alternative injector references
• 3803953 - alternative injector references
• 20405559 - injector hold-down screw

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA
• Volvo Penta D5A-B TA, D5A-T, D5A-TA
• Volvo Penta MD2010, MD2010B
• Volvo Penta TAD520GE, TAD520VE
• Volvo Penta TAD530GE MECH, TAD530GE EDC4
• Volvo Penta TAD531GE MECH, TAD531GE EDC4
• Volvo Penta TAD720GE, TAD720VE
• Volvo Penta TAD721GE, TAD721VE
• Volvo Penta TAD722GE, TAD722VE
• Volvo Penta TAD730GE MECH, TAD730GE EDC4
• Volvo Penta TAD731GE MECH, TAD731GE EDC4
• Volvo Penta TD520GE, TD520VE
• Volvo Penta TD720GE, TD720VE PP
• Volvo Penta TAD532GE EDC4
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4