2003-07 Cadillac CTS HID Headlight with Bulb Pair - 1ALHP01147

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Vehicle Fit

Part Details

  • Includes:   with Bulb
  • Quantity:   Pair
  • Light Option:   HID


  • Comes as a PAIR
    • LH (Driver Side) and RH (Passenger Side)
  • Replaces dealer part numbers: 15826016, 15826017
  • Includes lenses, housings, and mounting panels
    • Buyer will have to reuse original headlight washers
  • Bulbs & ballasts included
  • Correct for HID (High Intensity Discharge) models ONLY
    • Not correct for models with Halogen low beam
This headlight pair is a great replacement and has good cost savings over a head light set from the dealer.

H.I.D.  Ballast Note:

This Headlight is designed to be used with the supplied ballast. 

Direct Fit Replacement

Direct fit replacement for OEM assembly

Trouble-free Installation

Uses same wiring as original assembly.  No cutting or splicing required.

DOT and SAE Compliant

Meets federal regulations for on-road use

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

Bulb Note:

These lights do not include bulbs.  If you happen to receive a product with bulbs, the bulbs are for testing and not covered under our warranty.  Our warranty applies to the light assembly only.

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Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Are these capa certified?
Corey G April 23, 2016
no. They are DOT and SAE approved. CAPA does not have much influence on much aftermarket today due to the quality coming so far over the years
Brian F April 25, 2016
Are the assemblies for this item black in color?
Josh F February 16, 2017
the lenses are clear, just like the original.
Derek C February 16, 2017
What are the HID light system specifications?
Randy W November 24, 2017
I apologize, but what specifications are you particularly looking for?
Alex P November 24, 2017
Do these headlamps come with the auto level feature as well?
Megan G October 1, 2018
Thank you for your inquiry, but these do not appear to be compatible with models that have auto leveling headlights.
Tim K October 1, 2018
No, they do not.
S L October 3, 2018
Does this purchase come with the hid bulbs and ballast? Or will buyer have to reuse their own?
Maddy M May 27, 2019
The bulbs and ballast are included with this pair.
Corey M May 28, 2019
Year Make Model Description
2003-2007Cadillac CTS Cadillac CTS HID Headlight with Bulb Pair
Only 8 left in stock
Part 1ALHP01147
In Stock

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.