# 20797255 Flange Screw | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Flange Screw - Part Number: 20797255

  

OEM fastening or load-distribution component used in the flywheel-housing, rear-engine and sealing-cover assembly. It restores the specified thread, strength, length and clamping geometry required by the original Volvo Penta assembly.

  

Application note: Catalogue length: approximately 160 mm.

  

⚙️ Key Features

  

• Manufactured to the original Volvo Penta dimensional and material specification

• Maintains correct fit, alignment and service access in the designated assembly

• Designed for diesel-engine heat, vibration and operating-load exposure

• Direct replacement for a worn, damaged, missing or corroded original component

• Must be matched by part number, engine product and serial/configuration before installation

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20797255 (OEM catalogue reference)

  

OEM / Related Numbers:

  

• 21133296; 21280544; 21933436 flywheel-housing references

• 21486084 rear crankshaft lip seal

• 20800033 sealing cover

• 969011 gasket

• 21665303 adapter

• 20792329 retainer

• 20794126 bushing

• 21133308 bracket

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Flywheel-housing, rear-engine and sealing-cover assembly

  

Typically suits:

  

• Engine models:

• TAD560VE; TAD734GE; TAD752GE

• HP Range: Approximately 170-300 HP, depending on engine rating

• Engine Type: Four- and six-cylinder common-rail Volvo Penta industrial diesel

• Year Range: Approximately 2000s-2010s

  

🔌 Function

  

Provides the specified clamping, locating or load-distribution function so the connected assembly remains secure and aligned under vibration and thermal cycling.

  

Common signs of failure:

  

• Fastener or retained component repeatedly loosens

• Damaged, stretched, corroded or stripped threads/contact surfaces

• Loss of clamping force or component alignment

• Fretting, movement or cracking around the secured joint

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 31.58 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 31.58 AUD | In stock |

## Images

- 20797255 Flange Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20797255-flange-screw-genuine-volvo-penta)
> Updated: 2026-08-01