# 20460368 Nut | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Alternator Pulley Retaining Nut - Part Number: 20460368

  

High-strength nut used to retain the pulley on the shaft of the low-mounted 28-volt, 140-amp alternator.

  

⚙️ Key Features

  

• Genuine Volvo Penta alternator pulley retaining nut

• Designed for the low-mounted left alternator installation

• Direct service replacement for Volvo Penta part number 20460368

• High-strength nut used to retain the pulley on the shaft of the low-mounted 28-volt, 140-amp alternator

• Catalogued for TAD520VE, TAD720VE, TAD721VE, TAD722VE

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 20460368 (Volvo Penta OEM reference)

  

OEM / Related Numbers:

  

• 20460359 - alternator pulley

• 20580794 / 3803960 - related alternator references

• VOE20460368 - Volvo Construction Equipment prefixed number format

• 20460893 → 20580794 - 28V / 140A alternator service chain

• 3803960 - Volvo exchange 28V / 140A alternator

• 20460368 / 20460422 - pulley retaining-nut references

• 20460423 - alternator protective plug

• 20460438 - internal retaining screw

• 20460856 - suppression capacitor

• 20460862 / 20460863 - mounting screw and support bracket

• 20585207 / 978774 - application drive-belt set references

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta D5D/D7D industrial diesel installations

  

Typically suits:

  

• Engine models:

• TAD520VE

• TAD720VE

• TAD721VE

• TAD722VE

  

• HP Range: Approximately 174HP - 280HP

• Engine Type: Four- or six-cylinder turbocharged industrial diesel, model dependent

• Year Range: Approximately 1998 - 2006

  

🔌 Function

  

Secures, locates or locks the associated components while maintaining the designed clamp load or mechanical position.

  

Common signs of failure:

  

• Rounded, stripped or damaged threads or drive surfaces

• Corrosion, stretching, cracking or permanent deformation

• Fastener repeatedly loosens or cannot retain specified torque

• Fretting or movement visible at the joint

• Incorrect seating, clamp load or component alignment

  

Service / Installation Notes:

  

• Confirm thread, length, grade and any single-use restriction against the exact application

• Clean the threads and use the specified torque, angle and locking method

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 20.28 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 20.28 AUD | In stock |

## Images

- 20460368 Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20460368-nut-genuine-volvo-penta)
> Updated: 2026-07-30