# 3887778 Wiring Harness | Genuine Volvo Penta Part

## 🔧 Product Description

Genuine Volvo Penta wiring harness from the Cables and Fuses group, weighing 0.075 kg, with no application list published against the number. It sits between the 0.045 kg pair 3884672 and 3887225 and the 0.172 kg loom 3884109, so match the connector shape and pin count against the loom coming off before ordering.

## ⚙️ Key Features

-   0.075 kg
-   No application list published against the number
-   Sits between the 0.045 kg looms 3884672 and 3887225 and the 0.172 kg loom 3884109
-   Cables and Fuses group

## 🔌 Function

Carries power and signal between components, with the connectors and terminals already fitted at the correct lengths so the run cannot be mis-made.

## ⚠️ Common Signs of Failure

-   Intermittent fault that comes and goes with engine vibration
-   Green or white corrosion inside a connector
-   Insulation chafed, cracked or heat-damaged
-   Warning lamp or gauge reading erratically
-   Pins pushed back or loose in the connector body

## 🛠️ Service Notes

-   No applications are published against this harness, so match the connector shape and pin count against the loom coming off before ordering
-   Support the new harness clear of hot and moving parts and reuse the original clips and routing

## 📦 Condition

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

## Details

- **Price:** 460.65 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 460.65 AUD | In stock |

## Images

- 3887778 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3887778-wiring-harness-genuine-volvo-penta)
> Updated: 2026-09-06