20405565 Flange | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flange used to retain each unit injection pump in the cylinder block on TD520, TD720, TAD530-TAD733 and related engines. Four flanges are used on four-cylinder engines and six on six-cylinder engines.

🚤 Compatibility

• Engine Family: D, TD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Machined unit-pump retaining flange
• Four used on four-cylinder engines and six on six-cylinder engines
• Works with flange screws 20460071
• Clamps the pump and shim stack against the engine block
• Injection-pump height and sealing rings must be checked during installation
• Engine type: Volvo Penta 5- and 7-litre industrial diesel
• Quantity varies by assembly, most commonly six

🔌 Function

Retains the unit injection pump and its shim stack securely in the cylinder block.

⚠️ Common Signs of Failure

• Fuel or oil leakage around the pump
• Pump movement or fretting
• Cracked or distorted flange
• Incorrect injection-pump height
• Loose or damaged flange screws

🛠️ Service Notes

• Clean both mating faces back to clean metal and check them for flatness and for burrs or old gasket left in the sealing area; a face pulled up around a stud hole will not seal however hard it is tightened
• Always fit a new gasket, seal or O-ring where the joint uses one, and only use a jointing compound if the workshop manual for your engine calls for one at that joint
• Draw the fasteners up evenly in stages, working across the flange rather than round it, and finish to the tightening sequence and figures given for your engine
• Inspect studs, nuts and threads while the joint is apart and renew anything corroded, stretched or seized — exhaust-side fasteners rarely come out twice
• Re-check the joint for leaks once the engine has been up to working temperature and cooled again

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 20460071 - flange screws
• 20405543 - base shims
• 20881345-20881454 - timing shims
• 11700392 - injection-pump tappet
• 20405907 - related sealing rings

📦 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 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 TAD420VE
• Volvo Penta TAD532GE EDC4
• Volvo Penta TAD620VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TD420VE