Engine Wiring Harness. Porsche 911 1972-73

Engine Wiring Harness.

Porsche 911 Engine Wiring Harness for 1972–1973 911 models. Replaces the full engine electrical loom, connecting alternator, ignition, and sensors. Ensures reliable current flow.

Fits:

• Porsche 911 1972-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  
  

Diagram Ref No 9

What This Product Does:

• It connects the engine’s electrical components — alternator, ignition, sensors, and other engine peripherals — back to the fuse panel / engine bay wiring.
  
  

Symptoms Of Failure / Damage:

• No or intermittent charging (alternator not powering battery)
  
• Ignition / spark issues, misfires, dead cylinders
  
• Shorts, blown fuses in engine circuits
• Corroded / broken connectors, brittle insulation, oil damage leading to open circuits
• Erratic sensor readings or no connection to sensors
  
  

Why Replacement Matters:

• Restores electrical integrity in the engine bay — correct connections, reliable voltage paths
• Prevents electrical gremlins, such as random faults, shorts, or voltage drops
• A new harness with fresh connectors, grommets, and insulation resists heat, oil, vibration better than aged wiring

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91161201720

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