# 3812685 Electrical Distribution Unit | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta electrical distribution unit from the Cables and Fuses group, weighing 0.166 kg and listed for 4 applications on D-series engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta D2-40
-   Volvo Penta D1-30
-   Volvo Penta D1-13
-   Volvo Penta D1-20

-   **Engine Family:** D
-   **HP Range:** 13-40 HP

## ⚙️ Key Features

-   0.166 kg
-   4 applications on D-series engines
-   Central distribution point for engine supplies
-   Cap 3812683 covers the same four applications

## 🔌 Function

Distributes battery and switched supplies to the engine's electrical circuits from a single connection point.

## ⚠️ Common Signs of Failure

-   Intermittent or dead electrical circuits that come back when the unit is tapped or wiggled
-   Green or powdery corrosion on the terminals
-   Fuses blowing repeatedly on one circuit
-   Housing discoloured, softened or melted around a terminal
-   Voltage dropping across the unit under load

## 🛠️ Service Notes

-   Protective cap 3812683 is listed for the same four applications and keeps water out of the connections
-   Check for water ingress and a poor earth before condemning the unit, and record the wiring positions before disconnecting

## 📦 Condition

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

## Details

- **Price:** 118.87 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 118.87 AUD | In stock |

## Images

- 3812685 Electrical Distribution Unit | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3812685-electrical-distribut-unit-genuine-volvo-penta)
> Updated: 2026-09-18