20450801 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta flange screw weighing 0.023 kg and listed for 29 fitments across the D, TD, TAD and MD series. It supersedes 20558930, catalogued earlier simply as a screw.

🚤 Compatibility

• Engine Family: D, TD, TAD, MD

Full model list at the end of this description.

⚙️ Key Features

• Flange screw with an integral bearing flange
• 0.023 kg
• Supersedes 20558930, catalogued earlier as a screw
• Listed for 29 fitments across the D, TD, TAD and MD series
• Quantity varies by assembly, most commonly four

🔌 Function

Clamps the joint while its integral flange spreads the load across the mating face, doing the work a separate washer would otherwise do.

⚠️ Common Signs of Failure

• The screw found loose or backed off at the housing joint
• A knock or vibration from the joint it clamps
• The flange face dished or marked from over-tightening
• The thread galled or seized, shearing on removal
• The head rounded so a socket no longer grips

🛠️ Service Notes

• A workshop list quoting 20558930 is filled by this number
• Do not fit a separate washer under the flange, and tighten to the specified torque and sequence for the housing rather than working round it at random

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20450801 → Supersedes 20558930

OEM / Related Numbers

• 20558930 earlier number superseded by this part

📦 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 TAD750GE, TAD750VE
• Volvo Penta TAD420VE
• Volvo Penta TAD520VE
• Volvo Penta TAD550GE
• Volvo Penta TAD551GE
• Volvo Penta TAD620VE
• Volvo Penta TAD650VE
• Volvo Penta TAD660VE
• Volvo Penta TAD720VE
• Volvo Penta TAD721VE
• Volvo Penta TAD722VE
• Volvo Penta TAD732GE EDC4
• Volvo Penta TAD733GE EDC4
• Volvo Penta TAD751GE
• Volvo Penta TAD760VE
• Volvo Penta TD420VE
• Volvo Penta TD520VE
• Volvo Penta TD720VE PP