# 21664258 Wiring Harness | Genuine Volvo Penta Part

## 🔧 Product Description

A compact factory wiring harness fitted in the ignition and control-system junction box of Volvo Penta TAD560VE engines.

## 🚤 Compatibility

Typically suits:

-   Volvo Penta TAD560VE
-   Volvo Penta TAD561VE
-   Volvo Penta TAD765VE
-   Volvo Penta TAD764VE
-   Volvo Penta TAD763VE
-   Volvo Penta TAD762VE
-   Volvo Penta TAD761VE

-   **Engine Family:** TAD

## ⚙️ Key Features

-   TAD560VE control-system application
-   Junction-box internal harness
-   OEM connector and pin assignment
-   Secured by retaining plate 20860397

## 🔌 Function

The harness links the junction-box electrical connections and distributes power and control signals to the engine system.

## ⚠️ Common Signs of Failure

-   No-start or control-system fault
-   Burnt or loose terminals
-   Chafed wiring
-   Corrosion inside the junction box

## 🛠️ 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

## 🔄 Supersession & Cross Reference

### OEM / Related Numbers

-   21064448 - Junction box
-   20860397 - Retaining plate
-   20513984 - Cable tie
-   984733 - Flange screw

## 📦 Condition

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

## Details

- **Price:** 256.04 AUD
- **Vendor:** Volvo Penta
- **Type:** Electrical & Wiring
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 256.04 AUD | In stock |

## Images

- 21664258 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21664258-wiring-harness-genuine-volvo-penta)
> Updated: 2026-09-06