# 20460423 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Protective plug closing an unused opening or access point on the 28-volt, 140-amp alternator assembly.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D5A-B TA
-   Volvo Penta D5A-T
-   Volvo Penta D5A-TA
-   Volvo Penta D7A-B TA
-   Volvo Penta D7A-T
-   Volvo Penta D7A-TA
-   Volvo Penta D7C-B TA
-   Volvo Penta D7C-TA
-   Volvo Penta TAD720VE
-   Volvo Penta TAD721VE
-   Volvo Penta TAD722VE
-   Volvo Penta TAD750VE
-   Volvo Penta TAD520VE
-   Volvo Penta TAD760VE
-   Volvo Penta MD2010
-   Volvo Penta MD2010B

-   **Engine Family:** D, TAD, MD
-   **HP Range:** Approximately 174-280 HP
-   **Year Range:** Approximately 1998 - 2006

## ⚙️ Key Features

-   Genuine Volvo Penta alternator protective plug
-   Designed for the low-mounted left 28v / 140a alternator installation
-   Direct service replacement for Volvo Penta part number 20460423
-   Protective plug closing an unused opening or access point on the 28-volt, 140-amp alternator assembly
-   Engine type: Four- or six-cylinder turbocharged industrial diesel, model dependent

## 🔌 Function

Protective plug closing an unused opening or access point on the 28-volt, 140-amp alternator assembly.

## ⚠️ Common Signs of Failure

-   Visible wear, cracking, distortion or corrosion
-   Loose fit or excessive movement at the installed position
-   Abnormal noise, vibration or contact with adjoining components
-   Loss of the associated system function
-   Damage discovered during inspection or disassembly

## 🛠️ Service Notes

-   Compare the replacement directly with the removed component and confirm the engine model and serial number
-   Inspect all adjoining components and renew disturbed seals or locking hardware as required

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   20580794 - related alternator references
-   3803960 - related alternator references
-   20460359 - alternator pulley
-   20460368 - pulley retaining-nut references
-   20460422 - pulley retaining-nut references
-   20460438 - internal retaining screw
-   20460856 - suppression capacitor
-   20460862 - mounting screw and support bracket
-   20460863 - mounting screw and support bracket
-   20585207 - application drive-belt set references
-   978774 - application drive-belt set references

### Other-Brand OEM Numbers

-   VOE20460423 - Volvo Construction Equipment prefixed number format

### OEM Reman Alternatives

-   3803960 - Volvo exchange 28V / 140A alternator

## 📦 Condition

-   Genuine Volvo Penta part
-   Brand new
-   Supplied in original or equivalent packaging

## Details

- **Price:** 5.1 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.10 AUD | In stock |

## Images

- 20460423 Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20460423-plug-genuine-volvo-penta)
> Updated: 2026-10-10