Headlight Part # Question
Thread Starter
2nd Gear
Joined: Oct 2020
Posts: 2
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Headlight Part # Question
Hey everyone! Just purchased my first 911 last month after several Teslas - wanted that growl again after years of quiet. 
I've got a 2014 C4S with Aerokit and this option:
XEX Bi-Xenon headlights in Black incl. Porsche Dynamic Light System (PDLS)
The car is from FL and the headlights show it - I want to replace them with new ones to remove all the splintering/spidering on the lens and have a cleaner look.
I pulled the left one out and it shows part # 991.631.997.01
A google search for this shows very little. I do see some 991.631.997.02's out there - but the SW#: is 27.20 instead of 27.10 on mine.
A search on Rennlist for 991.631.997.01 and 991.631.997 shows no threads.
Where would you recommend that I go to get a 991.631.997.01 replacement (and matching for the right - which I have not pulled out to see product # yet)?
I've got a 2014 C4S with Aerokit and this option:
XEX Bi-Xenon headlights in Black incl. Porsche Dynamic Light System (PDLS)
The car is from FL and the headlights show it - I want to replace them with new ones to remove all the splintering/spidering on the lens and have a cleaner look.
I pulled the left one out and it shows part # 991.631.997.01
A google search for this shows very little. I do see some 991.631.997.02's out there - but the SW#: is 27.20 instead of 27.10 on mine.
A search on Rennlist for 991.631.997.01 and 991.631.997 shows no threads.
Where would you recommend that I go to get a 991.631.997.01 replacement (and matching for the right - which I have not pulled out to see product # yet)?
RL Community Team
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Rennlist Member
Joined: Dec 2013
Posts: 7,592
Likes: 3,232
From: Minnesota
If you're set on replacing them, try wet sanding them and polishing them before you throw money at aesthetics. What you describe is usually pretty easily fixed by stepping from 800 to 2000 grit (followed by a polishing compound of course)
Thread Starter
2nd Gear
Joined: Oct 2020
Posts: 2
Likes: 0
I'm aware of the cost - and aware that sanding is an option - my post for help is to make sure I get the right part and don't end up with something I can't return. It feels odd that when I google a part # only 6 searches on the entire internet show up!
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Joined: Feb 2004
Posts: 590
Likes: 162
From: Florida
Just a SWAG, worth every penny I am charging, 
but have you considered that the -02 is simply an improved /updated version of your existing -01 unit. Over my many years of messing with older cars and newer replacement stock, the original PN has often been superseded with an updated # (01 to 02, etc.) vs a new PN. Might be the case here. Have you checked with your Porsche dealer parts dept? Good luck, and let us know how it works out.
but have you considered that the -02 is simply an improved /updated version of your existing -01 unit. Over my many years of messing with older cars and newer replacement stock, the original PN has often been superseded with an updated # (01 to 02, etc.) vs a new PN. Might be the case here. Have you checked with your Porsche dealer parts dept? Good luck, and let us know how it works out.
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Joined: Jul 2019
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Likes: 415
Hey everyone! Just purchased my first 911 last month after several Teslas - wanted that growl again after years of quiet.
I've got a 2014 C4S with Aerokit and this option:
XEX Bi-Xenon headlights in Black incl. Porsche Dynamic Light System (PDLS)
The car is from FL and the headlights show it - I want to replace them with new ones to remove all the splintering/spidering on the lens and have a cleaner look.
I pulled the left one out and it shows part # 991.631.997.01
A google search for this shows very little. I do see some 991.631.997.02's out there - but the SW#: is 27.20 instead of 27.10 on mine.
A search on Rennlist for 991.631.997.01 and 991.631.997 shows no threads.
Where would you recommend that I go to get a 991.631.997.01 replacement (and matching for the right - which I have not pulled out to see product # yet)?
I've got a 2014 C4S with Aerokit and this option:
XEX Bi-Xenon headlights in Black incl. Porsche Dynamic Light System (PDLS)
The car is from FL and the headlights show it - I want to replace them with new ones to remove all the splintering/spidering on the lens and have a cleaner look.
I pulled the left one out and it shows part # 991.631.997.01
A google search for this shows very little. I do see some 991.631.997.02's out there - but the SW#: is 27.20 instead of 27.10 on mine.
A search on Rennlist for 991.631.997.01 and 991.631.997 shows no threads.
Where would you recommend that I go to get a 991.631.997.01 replacement (and matching for the right - which I have not pulled out to see product # yet)?
You can also call Suncoast Porsche or check their website here: https://www.suncoastparts.com/product/991DHLLIT.html
These are the dynamic versions which turn as you steer. VERY pricey though so repair may be the most cost effective.
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Joined: Nov 2018
Posts: 195
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Phil
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Joined: Jul 2006
Posts: 89
Likes: 27
From: Georgia
Another vote for eBay here. I have a 2014 C2S that had severely cracked headlights. I stalked eBay for black replacements. Got them for $500 each. Note that searching for the part number is good but a lot of sellers are terrible at putting the part number in a searchable field so also search for something like (Porsche 911 xenon) and look at the actual pictures to find the part number. Thats how I ultimately found mine.
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