# 463905 Expansion Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta expansion plug weighing 0.050 kg and listed for 110 applications across the MD, TMD, AQ, TAMD, AD and AQAD series. It supersedes part number 430160. This is a genuine casting plug, not a deposit or charge of any kind.

## 🚤 Compatibility

-   **Engine Family:** MD, TMD, AQ, TAMD, AD, AQAD, D, TD, BB, B, AQD, KAMD, KAD

Full model list at the end of this description.

## ⚙️ Key Features

-   Supersedes 430160
-   0.050 kg
-   110 applications across the MD, TMD, AQ, TAMD, AD and AQAD series
-   A physical casting plug

## 🔌 Function

Seals a machining or core hole in a casting, expanding against the bore as it is driven home so the passage behind it is closed off.

## ⚠️ Common Signs of Failure

-   Coolant or oil seeping from around the plug
-   Plug pushed out or standing proud of the casting
-   Corrosion or scale built up in the plug bore
-   Weeping that only shows once the engine is hot and under pressure

## 🛠️ Service Notes

-   Clean the bore back to sound metal before fitting, since a corroded bore will not hold a plug
-   Drive the plug in square to the correct depth, and use sealant only where the manual calls for it

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   463905 → Supersedes 430160

### OEM / Related Numbers

-   430160 earlier number superseded by this part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 TAMD31L-A, TAMD31M-A, TAMD31P, TAMD31P-A, TAMD31S, TAMD31A, TAMD31B, TAMD31D
-   Volvo Penta TAMD41B, TAMD41D, TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P, TAMD41A
-   Volvo Penta AD41B, AD41D, AD41L-A, AD41P-A, AD41A, AD41BJ
-   Volvo Penta AD31, AD31B, AD31D-A, AD31L-A, AD31XD
-   Volvo Penta B230, B230E, B230F, B230FB, B230FX
-   Volvo Penta 230A, 230B, 250A, 250B, 251A
-   Volvo Penta AQ131A, AQ131B, AQ131C, AQ131D
-   Volvo Penta TMD31A, TMD31B, TMD31D, TMD31L-A
-   Volvo Penta TMD41A, TMD41B, TMD41D, TMD41L-A
-   Volvo Penta AQ151A, AQ151B, AQ151C
-   Volvo Penta AQ170B, AQ170C, AQ170A
-   Volvo Penta BB170B, BB170C, BB170A
-   Volvo Penta D41B, D41D, D41L-A
-   Volvo Penta KAD42A, KAD42B, KAD42P-A
-   Volvo Penta KAD44P, KAD44P-B, KAD44P-C
-   Volvo Penta KAMD42A, KAMD42B, KAMD42P-A
-   Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
-   Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
-   Volvo Penta TMD40A, TMD40B, TMD40C
-   Volvo Penta AQ125B, AQ125A
-   Volvo Penta AQ145B, AQ145A
-   Volvo Penta AQ171A, AQ171C
-   Volvo Penta AQAD40B, AQAD40A
-   Volvo Penta TAMD40A, TAMD40B
-   Volvo Penta TAMD42WJ-A, TAMD42B
-   Volvo Penta AQ120B
-   Volvo Penta AQ140A
-   Volvo Penta AQ165A
-   Volvo Penta AQAD30A
-   Volvo Penta AQD40A
-   Volvo Penta BB140A
-   Volvo Penta BB145A
-   Volvo Penta BB165A
-   Volvo Penta KAD300-A
-   Volvo Penta KAD32P
-   Volvo Penta KAD43P-A
-   Volvo Penta KAMD300-A
-   Volvo Penta MD30A
-   Volvo Penta MD31A
-   Volvo Penta MD40A
-   Volvo Penta TAMD30A
-   Volvo Penta TD30A
-   Volvo Penta TD31ACE
-   Volvo Penta TD40A
-   Volvo Penta TMD30A

## Details

- **Price:** 12.73 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.73 AUD | In stock |

## Images

- 463905 Expansion Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/463905-expansion-plug-genuine-volvo-penta)
> Updated: 2026-09-13