Wiring Harness 3958223

This wiring harness routes electrical signals and power between the engine control module and engine sensors/actuators. It is designed for reliable operation in heavy-duty engine environments, offering correct routing and secure connector fitment to ensure signal integrity and consistency under vibration and temperature extremes.

• Function: Distributes power and signal between engine control unit and engine components
• Construction: Multi-conductor harness with molded connectors and protective sheathing 
• Connector Type: Engine control module-style plugs
• Application: Compatible with 3.9 L to 12 L diesel engine platforms (e.g. QSB, ISB, ISD) (confirm fitment before installation)

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