# 22025302 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta 3.0m SCR Control-Unit Wiring Harness, part number 22025302. A genuine 3.0-metre SCR harness connecting the aftertreatment control unit to the injector, exhaust-temperature sensor and NOx-sensor circuits.

  

⚙️ Key Features

  

• Factory branch lengths, keyed connectors and terminal positions

• Marine- or industrial-grade insulation and protective covering

• Correct conductor sizing for the assigned circuits

• Supports control, monitoring and diagnostic functions

• Direct replacement for the matching original harness

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 22025302 (current OEM reference)

  

OEM / Related Numbers:

  

• 23315464 - later 3.0m braided harness

• 21939133 - 3.0m engine-to-SCR-control-unit extension

• 21883893 - 2.0m NOx-sensor extension

• 21883891 - 2.0m tank heating / level-temperature sensor extension

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta SCR / AdBlue exhaust-aftertreatment electrical systems

  

Typically suits:

  

• Engine / drive models:

• TAD11 Stage IV / Stage V industrial engines

• TAD13 Stage IV / Stage V industrial engines

• TAD16 Stage IV / Stage V industrial engines

  

• HP Range: Approximately 380HP - 800HP, depending on engine rating

• Engine Type: Inline six-cylinder turbocharged industrial diesel with SCR aftertreatment

• Year Range: Approximately 2014 - current production-era applications

• Serial / Fitment Note: Confirm the complete engine, drive or equipment product number and serial number before ordering.

  

🔌 Function

  

Carries power, ground and control signals between the engine, sensors, control units and installation-side electrical connections.

  

Common signs of failure:

  

• Intermittent no-start, shutdown or loss of a controlled function

• Several unrelated electrical or network fault codes

• Voltage drop, open circuit or short circuit

• Chafed, heat-damaged or oil-contaminated insulation

• Corroded, loose or moisture-damaged connector terminals

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 458.38 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 458.38 AUD | In stock |

## Images

- 22025302 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/22025302-wiring-harness-genuine-volvo-penta)
> Updated: 2026-08-02