8 wire gauge illumination harness with bulb sockets. Porsche 911 1974-86 › 91161204700

The OE Match 8 wire gauge illumination harness with bulb sockets is replacement wiring for the dashboard instrument lighting on Porsche 911 models from 1974–86. Bulbs are not included. 

Fits

• Porsche 911 1974–86
  
  Check fitment for your specific vehicle (model, year, engine) before ordering.
  
  Diagram ref no 19
  
  What Is This Part?

This is the wiring harness serving the instrument illumination bulbs, with bulb sockets forming part of the assembly. Its purpose is to provide the electrical connections for lighting the dashboard gauges. () The eight-socket arrangement is identified for the instrument illumination assembly. When refurbishing the instruments, inspect the existing wiring and socket condition before deciding whether the harness needs replacing.

What Does This Part Do?

• Connects the illumination bulbs: Provides the wiring connections used by the dashboard instrument lighting. ()
• Holds the bulbs at their connection points: Incorporates eight bulb sockets for the instrument illumination assembly.
• Groups the lighting wiring: Brings the associated illumination leads together as a dedicated harness.
  
  Why Replace This Part?

Replacement may be appropriate when inspection finds brittle or chafed insulation, broken conductors, damaged sockets or unsuitable previous repairs. These defects can interrupt the lighting circuit or leave wiring inadequately insulated. Corroded or loose electrical connections can also introduce resistance and voltage loss, affecting lighting operation. 

Establish the cause before replacing the harness. A failed bulb, poor earth connection or fault elsewhere in the lighting supply can produce similar symptoms. Check the bulbs, supply and connections rather than treating an unlit gauge as proof of harness failure. 

When to Replace This Part?

• Cracked insulation: Wiring is brittle, split or rubbed through, exposing the conductor.
• Damaged bulb sockets: A socket is broken, loose or no longer holds its bulb securely.
• Corroded connections: Inspection reveals deterioration at the socket contacts or wiring terminals.
• Confirmed electrical fault: Continuity or voltage-drop testing identifies a defective wire or connection; damaged wiring and corrosion can cause faults that are not obvious externally. 
• Poor previous repairs: Loose joints, damaged insulation or altered wiring require a sound repair or harness replacement.
  
  Where Is This Part Fitted?

Location: Behind the dashboard instruments, connecting to the bulb positions used to illuminate the gauges.

Technical Details

• 8 wire gauge illumination harness.
• Instrument illumination arrangement with eight bulb sockets.
• Bulbs not included.
  
  Product Summary

• Product: Gauge illumination wiring harness with bulb sockets.
• Brand: OE Match.
• Purpose: Connects the dashboard instrument illumination bulbs.
• Repair context: Replacement for an inspected, defective instrument lighting harness.