# 20459263 Hex Socket Screw | Genuine Volvo Penta Part

## 🔧 Product Description

A genuine Volvo Penta hex. socket screw used in the engine fastening position. It is supplied as an individual service component under part number 20459263 and is intended to restore the original fit, sealing, alignment, retention or operating function of the specified assembly. This listing supplies the named part only; adjoining components shown in the engine arrangement are serviced separately unless explicitly stated.

## 🚤 Compatibility

-   **Engine Family:** D, TD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   Hex socket screw for a serial-controlled engine fastening position
-   45 mm long
-   0.034 kg
-   Listed for 35 applications across D, TD and TAD series engines
-   Supersedes 20546525
-   L=45mm (Volvo assembly listing)

## 🔌 Function

Secures the specified engine component using the correct internal-hex fastener geometry.

## ⚠️ Common Signs of Failure

-   Screw found loose or backed off at its position
-   Component it secures shifting or rattling under vibration
-   Socket rounded out so a key no longer bites
-   Corroded or seized thread that shears on removal
-   Screw found stretched or bent on inspection

## 🛠️ Service Notes

-   Order by length - this screw is 45 mm and a workshop list quoting 20546525 is filled by this number

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20459263 → Supersedes 20546525 → Supersedes 20450763

### OEM / Related Numbers

-   20546525 earlier number superseded by this part
-   20450763 earlier number superseded by this part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 D7A-B TA, D7A-T, D7C-B TA
-   Volvo Penta D5A-B TA, D5A-T
-   Volvo Penta TAD721GE, TAD721VE
-   Volvo Penta TAD722GE, TAD722VE
-   Volvo Penta TAD750GE, TAD750VE
-   Volvo Penta TAD420VE
-   Volvo Penta TAD520VE
-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD560VE
-   Volvo Penta TAD561VE
-   Volvo Penta TAD620VE
-   Volvo Penta TAD650VE
-   Volvo Penta TAD660VE
-   Volvo Penta TAD720VE
-   Volvo Penta TAD732GE EDC4
-   Volvo Penta TAD733GE EDC4
-   Volvo Penta TAD734GE
-   Volvo Penta TAD751GE
-   Volvo Penta TAD752GE
-   Volvo Penta TAD753GE
-   Volvo Penta TAD754GE
-   Volvo Penta TAD760VE
-   Volvo Penta TAD761VE
-   Volvo Penta TAD762VE
-   Volvo Penta TAD763VE
-   Volvo Penta TAD764VE
-   Volvo Penta TAD765VE
-   Volvo Penta TD420VE

## Details

- **Price:** 5.81 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.81 AUD | In stock |

## Images

- 20459263 Hex Socket Screw | Genuine Volvo Penta Part
- 20459263 Hex Socket Screw | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20459263-hex-socket-screw-genuine-volvo-penta)
> Updated: 2026-10-12