# 463643 Nut | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta nut from the Engine group for AQ115A engines, weighing 0.009 kg and listed for 35 applications across the MD, MB, AQ, BB and AQD series. It replaces four earlier numbers, 10569, 803429, 807043 and 944374, which were previously catalogued as a connecting rod bolt and a castle nut, so an older parts list calling up a bolt now supplies this nut.

## 🚤 Compatibility

-   **Engine Family:** MD, MB, AQ, BB, AQD
-   **Serial Range:** AQ115A MOXXXX/86909-.

Full model list at the end of this description.

## ⚙️ Key Features

-   For AQ115A engines
-   Replaces 10569, 803429, 807043 and 944374
-   0.009 kg
-   35 applications across the MD, MB, AQ, BB and AQD series

## 🔌 Function

Clamps a threaded joint to a set tension, holding the assembly together against the loads that try to work it loose.

## ⚠️ Common Signs of Failure

-   Nut found slack or backed off on strip-down
-   Thread stretched, galled or picked up
-   Knock or rattle from a joint that has lost clamp load
-   Mating face fretted or polished where the joint has been moving

## 🛠️ Service Notes

-   The old numbers it replaces were listed as a bolt and as a castle nut, so check what you are actually holding before assembly and expect the current supply to be a nut only
-   The published note also carries an incomplete production batch reference, so confirm the fastener against the engine before fitting
-   Treat highly stressed nuts as single use unless the manual says otherwise, and tighten to the specification in the engine manual

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   463643 → Supersedes 10569

### OEM / Related Numbers

-   803429 earlier number superseded by this part
-   807043 earlier number superseded by this part
-   944374 earlier number superseded by this part
-   10569 earlier number superseded by this part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 MD5A, MD5B, MD5C
-   Volvo Penta AQ115A, AQ115B
-   Volvo Penta AQ130C, AQ130D
-   Volvo Penta AQ170B, AQ170C
-   Volvo Penta BB115B, BB115C
-   Volvo Penta BB170B, BB170C
-   Volvo Penta MB20B, MB20C
-   Volvo Penta MD11C, MD11D
-   Volvo Penta MD17C, MD17D
-   Volvo Penta MD6A, MD6B
-   Volvo Penta MD7B, MD7A
-   Volvo Penta AQ120B
-   Volvo Penta AQ125A
-   Volvo Penta AQ140A
-   Volvo Penta AQ145A
-   Volvo Penta AQD2B
-   Volvo Penta BB140A
-   Volvo Penta BB145A
-   Volvo Penta MB10A
-   Volvo Penta MD1B
-   Volvo Penta MD2B
-   Volvo Penta MD3B
-   Volvo Penta MD67C

## Details

- **Price:** 60.48 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 60.48 AUD | In stock |

## Images

- 463643 Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/463643-nut-genuine-volvo-penta)
> Updated: 2026-10-07