Indicator unit loom. Porsche 996 1999>>

Indicator unit loom. REAR
This is a genuine Porsche part, built to the factory spec, which ensures fit, connector layout, insulation quality, and compatibility with the vehicle’s existing tail light and body wiring. Ideal for 1999-2005 911s, it restores correct electrical reliability and helps you avoid flickers, malfunctions or fitment headaches.

Fits:
Porsche 996 C2 / C4 1999>> (M602 - Raised stop lamp)
Porsche 996 GT3 1999>> (M602 - Raised stop lamp)

This product supersedes Porsche's old part number:
- 99663143600
- 99663143601

Diagram ref no 2

Number 996-631-436-02 replaces earlier wiring harness versions 996-631-436-00 and 996-631-436-01.

It carries electrical signals to/from the rear lights (tail, brake, number plate, indicators / third brake light etc.). Proper wiring is essential for safety (brake lights, indicators) and legal compliance (rear lamps and number plate lights).

When to Replace:
•  If lights are intermittent, flickering, or failing (one or more rear lights stop working), suspect a wiring issue
•  If there's visible damage: frayed wires, broken connectors, corrosion, melted insulation, or water ingress
•  After accident damage to rear panels / light assemblies where the harness may have been crushed, stretched, or damaged
•  When doing restoration or refurbishment of the rear light area to bring it back to OEM condition
•  If earlier harness versions (-00 or -01) are failing, upgrading to the newer -02 version ensures better reliability.




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Related, superseded, cross reference or alternative numbers for comparison.

99663143602

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