# 852904 Magnetic Plug | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta magnetic plug from the Marine Propulsion group, weighing 0.018 kg and listed for 130 applications including MD, TMD, AQ, AD, AQAD and D series engines. It supersedes part number 839354, which was catalogued earlier simply as a plug.

## 🚤 Compatibility

-   **Engine Family:** MD, TMD, AQ, AD, AQAD, D, BB, TAMD, MS, DP, SP, AQD, KAD, KAMD
-   **HP Range:** 13-75 HP

Full model list at the end of this description.

## ⚙️ Key Features

-   Magnetic
-   0.018 kg
-   Supersedes 839354, previously catalogued as a plain plug
-   130 applications across six engine series

## 🔌 Function

Blanks off the drain while its magnet collects ferrous debris from the oil, so what it picks up tells you how the gears and bearings are wearing.

## ⚠️ Common Signs of Failure

-   Heavy paste or metal flakes on the magnet at an oil change
-   Bright chips or slivers rather than fine grey fur, which points to a real failure starting
-   Weeping around the plug
-   Magnet weak or the plug drive rounded out

## 🛠️ Service Notes

-   Wipe the magnet clean at every oil change and look at what came off it - fine grey fur is normal, chips are not
-   Renew the sealing washer with the plug
-   The number it replaces, 839354, was catalogued as an ordinary plug, so an older list may not tell you the replacement is magnetic

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   852904 → Supersedes 839354

### OEM / Related Numbers

-   839354 earlier number superseded by this part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 2003, 2003R, 740B, 500A, 501A, 501B, 570A, 572A, 740A, 430A, 430B, 431A, 431B, 432A, 434A, 2003TB, 231LB, 271LB, 275A, 280B, 285A, 290A, 290DP, 120S-D, 120S-E, 2001B, 2001D, 2003D, 2003T, 2003TR, 2002B, 2002D, 2003B, 2001, 570, 500B, 500, 2002, 430, 2001R
-   Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-E, DP-G, DP-A, DP-A2, DP-B, DP-B1
-   Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
-   Volvo Penta D2-40F, D2-55F, D2-50F, D2-75F, D2-60F
-   Volvo Penta AQ271A, AQ271C, AQ271B, AQ271D
-   Volvo Penta BB225A, BB225AV, BB225B, BB225C
-   Volvo Penta MS25S, MS25S-A, MS25SR, MS25SR-A
-   Volvo Penta SP-C, SP-E, SP-A2, SP-C1
-   Volvo Penta TAMD31M, TAMD31A, TAMD31B, TAMD31D
-   Volvo Penta AQ225D, AQ225E, AQ225F
-   Volvo Penta D1-30F, D1-13F, D1-20F
-   Volvo Penta TMD31A, TMD31B, TMD31D
-   Volvo Penta TMD40A, TMD40B, TMD40C
-   Volvo Penta AD41B, AD41BJ
-   Volvo Penta AQ200D, AQ200F
-   Volvo Penta AQ205LB, AQ205A
-   Volvo Penta AQ231A, AQ231B
-   Volvo Penta AQAD40B, AQAD40A
-   Volvo Penta MD22, MD22A
-   Volvo Penta MS3B, MS3C
-   Volvo Penta MS4B, MS4A
-   Volvo Penta TAMD40A, TAMD40B
-   Volvo Penta TAMD41B, TAMD41P
-   Volvo Penta AD30A
-   Volvo Penta AD40B
-   Volvo Penta AQ211A
-   Volvo Penta AQAD30A
-   Volvo Penta AQD40A
-   Volvo Penta BB740A
-   Volvo Penta D41B
-   Volvo Penta KAD42B
-   Volvo Penta KAMD42B
-   Volvo Penta MD30A
-   Volvo Penta MD31A
-   Volvo Penta MD40A
-   Volvo Penta MS2B-A
-   Volvo Penta TAMD30A
-   Volvo Penta TAMD42B
-   Volvo Penta TMD22A
-   Volvo Penta TMD30A
-   Volvo Penta TMD41B

## Details

- **Price:** 78.73 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 78.73 AUD | In stock |

## Images

- 852904 Magnetic Plug | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/852904-magnetic-plug-genuine-volvo-penta)
> Updated: 2026-09-19