# 479976 Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta plug weighing 0.029 kg and listed for 45 applications across D, TWD, TID, TAMD, TD and TAD series engines. It supersedes part number 946559.

## 🚤 Compatibility

-   **Engine Family:** D, TWD, TID, TAMD, TD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   0.029 kg
-   45 applications across six engine series
-   Supersedes 946559
-   Threaded blanking plug
-   Quantity varies by assembly, most commonly one

## 🔌 Function

Seals off a threaded port that a particular build does not use, keeping the gallery or passage behind it closed.

## ⚠️ Common Signs of Failure

-   Weeping or a wet stain at the plug head
-   Drive recess rounded off from earlier removal
-   Plug seized in the port or the thread damaged
-   Sealing washer flattened and no longer holding

## 🛠️ Service Notes

-   Always fit a fresh sealing washer with a blanking plug
-   Do not cure a leak by overtightening - check the sealing face in the casting

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   479976 → Supersedes 946559

### OEM / Related Numbers

-   946559 earlier number superseded by this part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 D12C-A MP, D12D-A MG, D12D-A MP, D12D-B MP, D12D-C MP, D12D-D MP, D12D-E MP, D12D-F MP, D12D-G MP, D12D-H MP
-   Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
-   Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
-   Volvo Penta TAD730G, TAD730P, TAD730V
-   Volvo Penta TAMD72A, TAMD72P-A, TAMD72WJ-A
-   Volvo Penta D13B-A MP, D13B-H MP
-   Volvo Penta TAMD71B, TAMD71A
-   Volvo Penta TAMD73P-A, TAMD73WJ-A
-   Volvo Penta TD730ME, TD730VE
-   Volvo Penta TWD740GE, TWD740VE
-   Volvo Penta TAD740GE
-   Volvo Penta TAD741GE
-   Volvo Penta TAMD75P-A
-   Volvo Penta TD71A
-   Volvo Penta TD710G
-   Volvo Penta TID71A
-   Volvo Penta TWD730ME
-   Volvo Penta TWD731VE

## Details

- **Price:** 11.33 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 11.33 AUD | In stock |

## Images

- 479976 Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/479976-plug-genuine-volvo-penta)
> Updated: 2026-10-08