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Headlight Assembly – Passenger Side (Xenon)

Headlight Assembly – Passenger Side (Xenon)

GENUINE PORSCHE
Availability:
Out of stock
SKU 99763115823
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$2,100.41 - $2,100.41
$2,100.41
$2,100.41 - $2,100.41
$2,100.41
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CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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Integrated headlight assemblies are the accepted standard for modern cars and trucks. Older style “sealed beam” headlamps meant that the entire headlight was also the bulb, and needed to be replaced when burned out. Since the late 1980’s, vehicles in North America are now equipped with headlight assemblies. When a bulb burns out, the headlight assembly stays with the car and only the bulb itself needs to be changed. The assembly is made up of the lens, and the housing, as well as various clips and captured nuts to fasten it to the car. Oftentimes when one of these components break, the entire assembly must be replaced to avoid dangerous headlight performance. Keep in mind if your lens is pitted or hazy, euromotiv carries headlight restoration kits to prevent you having to replace the entire assembly.

Brand Part #
Brand Part #
Porsche 997 631 158 23 / 99763115823

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 4 applications
Porsche
Make Model Engine Years
Porsche 911 3.8H6 2005–2013
Porsche 911 3.6H6 2005–2012
Porsche 911 3.4H6 2012–2012
Porsche 911 4.0H6 2011–2011

Fitment data last updated: 2026-06-30

Fits 4 vehicle applications Check vehicle fitment before ordering View fitment

About this Headlight

The GENUINE PORSCHE 99763115823 headlight assembly lights the road ahead and makes your car visible to others. Housings can yellow, crack or fog with moisture over time, and damaged units reduce light output and may fail inspection.

Frequently asked questions

When should I replace a headlight assembly?

When the lens is cracked, badly yellowed or cloudy, the housing lets moisture in, the mounting tabs are broken, or the internal reflector has deteriorated so the beam is weak.

Does the headlight come with bulbs or modules?

It depends on the product. Some assemblies include bulbs, ballasts or LED modules and some do not; check the product details and transfer or buy the missing parts as needed.

Do I need to match halogen, xenon or LED?

Yes. Halogen, xenon (HID) and LED headlights use different housings, wiring and control units. Choose the type that matches your car's original equipment unless the product says otherwise.

Do the headlights need aiming after installation?

Yes. Have the aim checked and adjusted after fitting a new headlight so it lights the road properly without dazzling other drivers. Some cars with adaptive or automatic leveling lights also need a calibration.

How do I make sure this headlight assembly fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.