Replacement headlight harness for Porsche 996.1 and 986 halogen

A pair of built-from-scratch internal headlight harnesses for the Porsche 996.1 and 986 with halogen headlights (WILL NOT FIT Litronic headlights).

Note #1: In order to replace the internal headlight harness, you need to separate the lens from the housing.

If you order our special tools, we will include a link to a series of detailed how-to videos to make this process a breeze.

Special tools to safely separate the lens from the housing:

Optional Morimoto butyl rubber sealant:

We are the only company in the world offering these replacement harnesses. Porsche does not offer them. These are built from scratch by us right here in the US, from foreign and domestic parts. All connectors and wiring is brand new, and wiring is not subject to deterioration like the OEM harness wiring is.

Deterioration of the wiring insulation is a common issue on all Porsche 986/996 internal headlight harnesses. In the era these cars were built, stringent regulations were in place in Germany that mandated that all plastics used in cars was biodegradable. Porsche (and a few other manufacturers like BMW) did too good of a job in complying, resulting in these harnesses to start biodegrading in just 20 years.

There are different factors that determine the speed of this deterioration, but mileage doesn't appear to be one of them. We have seen cars with very low miles that still exhibited this issue. Below are some examples of what it looks like.