# 21138337 Wiring Harness | Genuine Volvo Penta Part

🔧 Product Description

  

Genuine Volvo Penta Wiring Harness - Part Number: 21138337

  

A configuration-specific wiring harness for the d13 electronically controlled marine diesel electrical system. It distributes power, ground and sensor/actuator signals through sealed branches whose length and connector population match the engine dataset and installed options.

  

⚙️ Key Features

  

• Sealed application-specific connectors

• Branch lengths follow the original engine routing

• Conductor sizes match circuit load

• Integrated shielding or twisted pairs where required

• Harness generation, ECU dataset and engine serial number must match

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 21138337 (current OEM reference)

  

OEM / Related Numbers:

  

• 21138337

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

Assembly / Service Components:

  

• 20513343 - cam/flywheel speed sensor used by related harnesses

• 21109100 / 21138559 - sensor-kit references used by serial-controlled versions

  

🚤 Compatibility

  

Commonly used on:

  

• D13 electronically controlled marine diesel electrical system

  

Typically suits:

  

• Engine models:

• D13B-series

• D13C1-A

• D13C2-A

• D13C3-A

• D13C4-A

• D13C5-A

• D13C6-A

  

• HP Range: Engine-rating dependent

• Engine Type: D13 electronically controlled marine diesel electrical system

• Year / Serial Range: Harness branch lengths, sensor-kit generation, ECU configuration and connector population are serial controlled

  

🔌 Function

  

Connects the ECU, sensors, actuators and installation interfaces while protecting low-voltage signals from heat, oil, moisture and vibration.

  

Common signs of failure:

  

• Intermittent or implausible ECU reading

• Fault code, warning or derate

• Open circuit, short circuit or high resistance

• Heat-damaged or corroded connector terminals

• Fault changes when the harness or component is moved

  

📦 Condition

  

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 2026.99 AUD
- **Vendor:** Volvo Penta
- **Tags:** Volvo Penta

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2026.99 AUD | In stock |

## Images

- 21138337 Wiring Harness | Genuine Volvo Penta Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/21138337-wiring-harness-genuine-volvo-penta)
> Updated: 2026-08-02