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