20405635 Suction Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta suction pipe routing oil from the sump pickup into the front-cover oil pump on TD520GE and TAD530-TAD532 engines.

🚤 Compatibility

Typically suits:

• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA
• Volvo Penta TD520GE
• Volvo Penta TD520VE
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD520GE
• Volvo Penta TAD520VE
• Volvo Penta TAD530GE MECH
• Volvo Penta TAD530GE EDC4
• Volvo Penta TAD531GE MECH
• Volvo Penta TAD531GE EDC4
• Volvo Penta TAD532GE EDC4
• Volvo Penta MD2010
• Volvo Penta MD2010B

• Engine Family: D, TD, TAD, MD

⚙️ Key Features

• Rigid low-pressure oil-pump inlet pipe
• Connects the sump supply to the front-cover oil pump
• Confirmed on TD520GE and TAD530-TAD532 engines
• Uses gasket 20405888 and the specified flange screws
• Must remain airtight and free of internal restriction
• Engine type: Volvo Penta 5-litre industrial diesel

🔌 Function

Draws engine oil from the sump to the oil-pump inlet without allowing air to enter.

⚠️ Common Signs of Failure

• Delayed or low oil pressure
• Oil-pump cavitation
• Cracked or loose suction pipe
• Blocked pipe or pickup
• Air leakage at the gasket joint

🛠️ Service Notes

• Clean the pipe bore and both joint faces before fitting and clear out any debris — anything left in a suction pipe goes straight into the pump
• Fit new gaskets, seals or O-rings at every joint; a suction line that draws air will make the pump lose its prime or cavitate rather than simply weep
• Check the pipe and any strainer or screen end for corrosion, splits, distortion and blockage, and check that the sealing faces are flat
• Start all fasteners before tightening any so the pipe is not strained into place, then tighten evenly to the figures given in the workshop manual for your engine
• Refit brackets and supports, then check for leaks and for correct pump flow or pressure once the engine is running

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20405888 - suction-pipe gasket
• 20882047 - front cover
• 20405603 - oil-pump locating pin
• 20405792 - related fasteners
• 984735 - related fasteners

📦 Condition

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