• Brand New Lighting Kit
  • Comes as a 4 Piece Kit
    • Fits LH (Driver Side) & RH (Passenger Side)
  • Direct replacement
  • Built to strict quality control standards
Direct Fit Replacement

Direct fit replacement for OEM assembly

Trouble-free Installation

Light uses same wiring as the original assembly, providing easy, trouble-free installation.  No cutting or splicing required.

DOT and SAE Compliant

DOT & SAE compliant: meets federal regulations for on-road use

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Handling the Bulbs (0:50)
    • Note: DO NOT TOUCH the bulbs- the oil from your fingers will burn into the light and foul your bulb.
    • Clean with rubbing alcohol and a soft cloth if the bulbs do get touched.
  2. step : Remove the old headlight assembly (0:50)
    • Pop the hood and secure it.
    • Remove the two anchor pins securing the head light assembly by twisting and pulling them up.
    • Remove the head light assembly.
    • Unplug the bulbs and harness.
  3. step : Install the new headlight assembly (1:35)
    • Plug in your bulbs, replacing them with new ones if necessary.
    • Reconnect the harness by clipping it in.
    • Line up the head light assembly and clip it into place.
    • Put the two pins back into place to secure the head light assembly.
    • Close the hood and enjoy your new 1A Auto headlights.

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

4.7 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
headlight replacement
Fast shipping and a great deal on this 4 pc headlight / parking light replacement. I got 360000 miles out of the original ones so hopefully I can get that on these. The headlight bulbs came with it but no bulbs for the parking lights as noted on the product description. I'm happy
May 29, 2018
1 month ago
Top notch!
Loved.the lighting kit. Fit perfectly no problems. AND the price was right. Good job guys and gals!
January 21, 2018
5 months ago
Great value & product
Between a great product & a video that shows you how to remove & install all two front head light & turning lights . Simple step by step awesome. All lights fit as well as if they were from the factory, when it was built! If I ever need any future parts I will check with A1Auto first ! Thanks you again great product
January 20, 2018
5 months ago
Look like new OEM.
Very satisfied with this new complete light kit. The lights are nice and bright. Transformed my truck, looks new on the front. You will have to adjust them to aim correctly. They were all out of whack. I highly recommend these for the price mostly.
January 4, 2018
5 months ago
Great Look
My old lights were yellowed, scratchy and nasty looking. These sure make my old pickup look good again. Great price, perfect fit.
December 21, 2017
6 months ago
Headlight replacements
These headlights are fantastic easy to change out buy the difference it makes is amazing the truck looks new again
November 8, 2017
7 months ago
Sort of OK
This kit of 4 lights arrived promptly and looked good out of the box. Installation was easy and they even had the headlight bulbs included. After a couple days noticed the parking lights were fogging up after heavy rain, would clear up after a day but kept fogging. Checked them over and seems like a bead of clear silicone is needed on the top seams. These are bright, fitment is good and they look nice on the truck but they seem to be of thinner materials and are lacking proper sealment and venting. Good for a truck you are going to sell.
September 18, 2017
9 months ago
Response from 1A Auto
We are sorry to hear that the parking lights are fogging up due to a bad seal. Please call us at 1-888-844-3393 if you would like to request a replacement.
September 18, 2017
Alex P Staff
Quick Installation and Look GREAT!
My old lights (factory installed) were starting to yellow on my 2006 GMC Sierra. The rest of my truck looks great, but the yellowed lights aged it. Ordered these, received them within a couple days. Installation was about 15 minutes and my truck looks 10 years newer! Also ordered a pair for my GMC Envoy and those looks great as well. Would highly recommend. The installation is quick and easy and the fit is perfect. The lights are very bright and look great.
September 15, 2017
9 months ago
Bought these for my 2000 gmc 2500 and could not be happier they made my Truck look like new again.I had no idea how bad my old lights looked until I put these new lights in WOW. Yes I would absolutely tell everybody to buy these lights.
July 30, 2017
11 months ago
I ordered headlights
They fit perfect and looks great
January 21, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 2 questions Browse 2 questions and 14 answers
After installing the headlights in the headlight kit, do I have to get the headlight aim checked?
Dennis S on Mar 13, 2016
BEST ANSWER: May need some tweaking to get perfect but should be pretty close out of the box
How do you adjust the lights?
L S on Aug 6, 2017
BEST ANSWER: I didnt have to do much adjustment just a turn or so on the adjusting screws on the back of the light

Vehicle Fit

  • 1999-2000 GMC Sierra 1500 Lighting Kit 4 Piece Set
  • 2001 GMC Sierra 1500 (excluding C3 Models) Lighting Kit 4 Piece Set
  • 2002-2006 GMC Sierra 1500 (excluding Denali Models) Lighting Kit 4 Piece Set
  • 2007 GMC Sierra 1500 Classic Lighting Kit 4 Piece Set
  • 2001-2003 GMC Sierra 1500 HD Lighting Kit 4 Piece Set
  • 2005-2006 GMC Sierra 1500 HD Lighting Kit 4 Piece Set
  • 2007 GMC Sierra 1500 HD Classic Lighting Kit 4 Piece Set
  • 1999-2004 GMC Sierra 2500 Lighting Kit 4 Piece Set
  • 2001-2006 GMC Sierra 2500 HD Lighting Kit 4 Piece Set
  • 2007 GMC Sierra 2500 HD Classic Lighting Kit 4 Piece Set
  • 2001-2005 GMC Sierra 3500 Lighting Kit 4 Piece Set
  • 2007 GMC Sierra 3500 Classic Lighting Kit 4 Piece Set
  • 2000-2006 GMC Yukon (excluding Denali Models) Lighting Kit 4 Piece Set
  • 2000-2006 GMC Yukon XL 1500 (excluding Denali Models) Lighting Kit 4 Piece Set
  • 2000-2006 GMC Yukon XL 2500 Lighting Kit 4 Piece Set

This part replaces:

  • TYC 20-5568-00-1
  • TYC 20-5567-00-1
  • TYC 12-5104-01-1
  • TYC 12-5103-01-1
  • Hollander 114-00956L
  • Hollander 114-00955R
  • Hollander 116-1066L
  • Hollander 116-1066R
  • OE # 16526135
  • OE # 16526136
  • OE # 15199560
  • OE # 15199561
  • Partslink GM2502188
  • Partslink GM2503188
  • Partslink GM2520174
  • Partslink GM2521174
Part #: 1ALHT00031

How-to Video:

(03:05 min)