# 955547 Hexagon Screw | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta hexagon screw of the early type, weighing 0.023 kg and listed for 19 applications across the AQ, AQD, BB, THAMD, MD and MB series. It consolidates 3853389 and 921857, one of which was catalogued earlier as a flange screw. No length is published against this number, so the early-type marking, the engine series and the part number are what identify it.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta AQ130C
-   Volvo Penta AQD70BL
-   Volvo Penta BB115A
-   Volvo Penta BB115B
-   Volvo Penta AQ115A
-   Volvo Penta AQD70CL
-   Volvo Penta 740A
-   Volvo Penta AQ130D
-   Volvo Penta THAMD70C
-   Volvo Penta BB740A
-   Volvo Penta BB115C
-   Volvo Penta AQ115B
-   Volvo Penta AQ130A
-   Volvo Penta AQ130B
-   Volvo Penta THAMD70B
-   Volvo Penta MD21A
-   Volvo Penta MB20A
-   Volvo Penta MB20B
-   Volvo Penta MB20C

-   **Engine Family:** AQ, AQD, BB, THAMD, MD, MB

## ⚙️ Key Features

-   Early type
-   0.023 kg
-   Consolidates 3853389 and 921857, one catalogued as a flange screw
-   19 applications across six engine series
-   Quantity varies by assembly, most commonly four

## 🔌 Function

Bolts two components together, clamping the joint through a plain hexagon head.

## ⚠️ Common Signs of Failure

-   Screw found loose or backed out at service
-   Hex flats rounded off
-   Thread stripped in the screw or in its tapping
-   Screw snapped under the head

## 🛠️ Service Notes

-   The BB and THAMD fitment is unusual in this run and is a useful check alongside the part number
-   One of the numbers it takes over was a flange screw, so check whether a separate washer is now wanted under the head

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   955547 → Supersedes 3853389

### OEM / Related Numbers

-   921857 earlier number superseded by this part
-   3853389 earlier number superseded by this part

## 📦 Condition

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

## Details

- **Price:** 9.24 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 9.24 AUD | In stock |

## Images

- 955547 Hexagon Screw | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/955547-hexagon-screw-genuine-volvo-penta)
> Updated: 2026-09-06