# 20542497 Hexagon Nut | Genuine Volvo Penta Part

## 🔧 Product Description

This genuine Volvo Penta hexagon nut is an OEM service component used in the Engine-Bracket Hexagon Nut. It is manufactured to the original Volvo Penta dimensional, material and interface requirements for the documented Volvo D5A industrial diesel application. Technical identification: Hexagon nut securing the specified bracket or engine component. In service, it provides the specified clamp load and mechanical retention for the associated assembly. Selection must be confirmed by OEM part number 20542497, the exact model/product number, serial number and installed assembly configuration.

## 🚤 Compatibility

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

Full model list at the end of this description.

## ⚙️ Key Features

-   Genuine Volvo Penta OEM hexagon nut
-   OEM part number 20542497
-   Technical distinction: Hexagon nut securing the specified bracket or engine component
-   4 used per assembly
-   Also supersedes Volvo part number 3586544

## 🔌 Function

Clamps the bracket or engine component down onto its stud or bolt, holding the joint at its designed load.

## ⚠️ Common Signs of Failure

-   Component working loose or vibrating on its mounting
-   Nut backed off along its thread
-   Fretting or witness marks around the joint face
-   Thread galled or stripped on removal

## 🛠️ Service Notes

-   Consolidates 20714946 and 20882846, both catalogued earlier as a nut

## 🔄 Supersession & Cross Reference

### OEM Supersession Chain

-   20542497 → Supersedes 20714946

### OEM / Related Numbers

-   20882846 earlier number superseded by this part
-   20714946 earlier number superseded by this part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 D5A-B TA, D5A-T, D5A-TA
-   Volvo Penta D7A-B TA, D7A-T, D7A-TA
-   Volvo Penta MD2010, MD2010B
-   Volvo Penta TAD530GE MECH, TAD530GE EDC4
-   Volvo Penta TAD531GE MECH, TAD531GE EDC4
-   Volvo Penta TAD730GE MECH, TAD730GE EDC4
-   Volvo Penta TAD731GE MECH, TAD731GE EDC4
-   Volvo Penta TAD520GE
-   Volvo Penta TAD532GE EDC4
-   Volvo Penta TAD550GE
-   Volvo Penta TAD551GE
-   Volvo Penta TAD720GE
-   Volvo Penta TAD721GE
-   Volvo Penta TAD722GE
-   Volvo Penta TAD732GE EDC4
-   Volvo Penta TAD733GE EDC4
-   Volvo Penta TAD750GE
-   Volvo Penta TAD751GE
-   Volvo Penta TAD752GE
-   Volvo Penta TAD753GE
-   Volvo Penta TAD754GE
-   Volvo Penta TD520GE
-   Volvo Penta TD720GE

## Details

- **Price:** 2.79 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2.79 AUD | In stock |

## Images

- 20542497 Hexagon Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/20542497-hexagon-nut-genuine-volvo-penta)
> Updated: 2026-09-21