# 3857679 Nut | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta nut from the Fuel System group, weighing 15.9 grams and listed for three applications.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta 7.4GiPEFS
-   Volvo Penta 7.4GiPBYCCE
-   Volvo Penta 7.4GiPWTR

## ⚙️ Key Features

-   15.9 g
-   Three applications
-   Fuel System group
-   3 used per assembly

## 🔌 Function

Clamps a fuel system joint down and holds it against vibration and pressure pulses.

## ⚠️ Common Signs of Failure

-   Fuel weeping at the joint the nut secures
-   Nut found loose or backed off
-   Thread stripped or galled
-   Nut seized by corrosion so it will not undo cleanly

## 🛠️ Service Notes

-   A loose fuel joint is a fire risk, so tighten to the published figure and check for leaks with the engine running before closing up
-   Renew rather than reuse a nut whose thread or locking feature has been damaged

## 📦 Condition

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

## Details

- **Price:** 11.3 AUD
- **Vendor:** Volvo Penta
- **Type:** Fasteners & Fixings
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 11.30 AUD | In stock |

## Images

- 3857679 Nut | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3857679-nut-genuine-volvo-penta)
> Updated: 2026-10-11