# 22250709 Wiring Harness | Genuine Volvo Penta Part

## 🔧 Product Description

Factory extension harness used to extend a Volvo Penta engine or installation electrical circuit without changing connector pinout, conductor size or environmental sealing. Independent catalogue descriptions identify 22250709 specifically as an extension cable/harness rather than a complete engine loom.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD880-82GE
-   Volvo Penta TAD880-84VE
-   Volvo Penta TAD580-83VE
-   Volvo Penta TAD570-72VE
-   Volvo Penta TAD570-71VE-B
-   Volvo Penta TAD870-73VE
-   Volvo Penta TADH880-82GE
-   Volvo Penta TADH880-84VE

-   **Engine Family:** TAD, TADH

## ⚙️ Key Features

-   Application-specific male and female connectors
-   Factory conductor size and branch length
-   Sealed for oil, moisture and vibration exposure
-   Maintains original circuit pinout
-   Intended for an installation-controlled cable run
-   Engine type: Electronically controlled Volvo Penta marine or industrial engine

## 🔌 Function

Extends the assigned electrical connection while preserving signal integrity, voltage capacity and connector sealing.

## ⚠️ Common Signs of Failure

-   Intermittent circuit or communication loss
-   Corroded or backed-out terminals
-   High resistance or voltage drop
-   Fault changes when the extension harness is flexed

## 🛠️ Service Notes

-   Compare the new harness with the old one before fitting — check the connector types, the number of pins and the branch lengths, and lay it out alongside the old loom to confirm every branch reaches its component
-   Disconnect the batteries before unplugging or fitting a harness, and support the loom as you work so its weight never hangs on a connector or a bulkhead grommet
-   Route it along the original path and secure it with the original clips and ties, clear of hot exhaust surfaces, sharp edges and anything that moves; leave a service loop at each connector rather than pulling a branch tight
-   Push every connector home until the lock latches and protect the joints with a marine dielectric grease — an intermittent electrical fault is far more often a partly seated or salt-corroded pin than a broken wire
-   Renewing the harness is the right repair where insulation is chafed, brittle or oil-soaked, or where corrosion has tracked inside the connector bodies; patch repairs in a damp engine bay tend to fail again, and any single conductor that is repaired should be joined with tinned marine cable of the same gauge, a proper crimp and adhesive-lined heat-shrink

## 📦 Condition

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

## Details

- **Price:** 3308.03 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3308.03 AUD | In stock |

## Images

- 22250709 Wiring Harness | Genuine Volvo Penta Part
- 22250709 Wiring Harness | Genuine Volvo Penta Part - photo 2 of 2

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/22250709-wiring-harness-genuine-volvo-penta)
> Updated: 2026-10-21