# 21871586 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Main Engine Wiring Harness - Part Number: 21871586

  

A genuine heavy main wiring harness used in a Volvo Penta marine or industrial engine installation. Its approximately 4kg assembly contains the branch circuits and connectors required by the exact engine configuration.

  

⚙️ Key Features

  

• Factory branch lengths, keyed connectors and terminal positions

• Engine-grade insulation and protective covering

• Correct conductor sizing for the assigned circuits

• Supports control, monitoring and diagnostic functions

• Direct replacement for the matching harness

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21871586 (current OEM reference)

  

OEM / Related Numbers:

  

• 21871586 - current OEM reference

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Volvo Penta engine, drive or accessory assemblies catalogued for this exact part number

  

Typically suits:

  

• Engine / drive models:

• Complete product number and serial number must identify the illustrated component position

  

• HP Range: Installation dependent

• Engine Type: Volvo Penta marine or industrial engine system

• Year Range: Production-era fitment determined by product and serial number

• Serial / Fitment Note: Confirm total connector count, branch layout, system voltage, engine product number and serial number. A visually similar harness is not necessarily interchangeable.

  

🔌 Function

  

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

  

Common signs of failure:

  

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

• Several unrelated electrical 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:** 3065.77 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3065.77 AUD | In stock |

## Images

- 21871586 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21871586-wiring-harness-genuine-volvo-penta)
> Updated: 2026-08-02