# 421541 Nut | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta nut from the Engine group, weighing 0.016 kg and listed for 58 applications across the TWD, TID, TAMD, TD and TAD series.

## 🚤 Compatibility

-   **Engine Family:** TWD, TID, TAMD, TD, TAD

Full model list at the end of this description.

## ⚙️ Key Features

-   0.016 kg
-   58 applications across five engine series
-   Shares its fitment list with belt tensioner 421540

## 🔌 Function

Clamps and locks its fastener so the joint stays tight in service.

## ⚠️ Common Signs of Failure

-   Nut found slack or missing after running
-   Thread stripped or picked up on removal
-   Corner rounded off by a poorly fitting spanner
-   Corrosion seizing the nut onto its stud

## 🛠️ Service Notes

-   Order alongside belt tensioner 421540, which covers the same engines
-   Fit new rather than reusing a nut that has already been run down hard, especially a self-locking type

## 📦 Condition

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

## 🔎 Full Model Compatibility

Typically suits:

-   Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
-   Volvo Penta TD61A, TD61ACE, TD61AG, TD61AGP, TD61AP, TD61APB, TD61AW
-   Volvo Penta TD71A, TD71ACE, TD71AG, TD71AGP, TD71AP, TD71APB, TD71AW
-   Volvo Penta TID71A, TID71AG, TID71AGP, TID71AP, TID71APB
-   Volvo Penta TWD610G, TWD610P, TWD610PB, TWD610V
-   Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
-   Volvo Penta TAD730G, TAD730P, TAD730V
-   Volvo Penta TD610G, TD610M, TD610V
-   Volvo Penta TD630ME, TD630VE
-   Volvo Penta TD730ME, TD730VE
-   Volvo Penta TID61AG, TID61AGP
-   Volvo Penta TWD630ME, TWD630VE
-   Volvo Penta TWD740GE, TWD740VE
-   Volvo Penta TAD740GE
-   Volvo Penta TAD741GE
-   Volvo Penta TAMD71B
-   Volvo Penta TAMD75P-A
-   Volvo Penta TD640VE
-   Volvo Penta TD710G
-   Volvo Penta TWD730ME
-   Volvo Penta TWD731VE

## Details

- **Price:** 6.69 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.69 AUD | In stock |

## Images

- 421541 Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/421541-nut-genuine-volvo-penta)
> Updated: 2026-09-19