# 21766558 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Heavy-Duty Flange Screw - Part Number: 21766558

  

Flanged engine fastener manufactured to the Volvo Penta strength, thread and length specification. The integral flange spreads clamp load without a separate washer.

  

⚙️ Key Features

  

• Genuine Volvo Penta flange screw

• Factory thread, length and strength class

• Integral load-spreading flange

• Correct coating for the application

• Use the specified torque and replacement rule

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21766558 (current OEM service number)

  

OEM / Related Numbers:

  

• VOE21766558

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta heavy-duty engine or drive assemblies

  

Typically suits:

  

• Engine models / systems:

• Assembly whose parts diagram specifies flange screw 21766558

  

• Fitment Note: Confirm thread, length, strength class and tightening torque

  

🔌 Function

  

Clamps the connected components with the specified preload.

  

Common signs of failure:

  

• Stretched or damaged threads

• Rounded head

• Corrosion or fretting

• Loss of clamp load

• Use after a torque-to-yield procedure

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 9.46 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9.46 AUD | In stock |

## Images

- 21766558 Flange Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21766558-flange-screw-genuine-volvo-penta)
> Updated: 2026-08-02