United Pacific 31326 Columbia blackout projector headlights
The United Pacific 31326 headlight pair gives the Freightliner Columbia a projection-headlight design with black inner housings. Driver-side and passenger-side assemblies are supplied together with amber 1157 turn-signal bulbs. This bulb-based, 12V set connects to the existing headlight wiring harness.
Fitment and ordering notes
Manufacturer-listed application: 2001–2011 Freightliner Columbia. Confirm the equipment on a 2012–2020 truck with BTS before ordering. Compare the original housing, mounting points and wiring connections.
Specifications
- Manufacturer part number: 31326
- Housing finish: Black inner housing
- Headlight design: Projection headlight; without LED
- Electrical system: 12V DC; connects to the existing headlight harness
- Included turn-signal bulbs: Amber 1157
- Package quantity: Two assemblies: driver and passenger
- Manufacturer-listed standards: DOT/SAE and FMVSS 108
Installation notes
Contact BTS to confirm the supplied housing, low/high-beam bulb configuration and contents before choosing replacement bulbs. Check the assembly’s mounting and wiring against the truck before installation.
What is included
One driver-side projection headlight assembly and one passenger-side projection headlight assembly, with amber 1157 turn-signal bulbs. Confirm the exact low/high-beam bulb contents with BTS.
Product questions and answers
Which Columbia years are listed for United Pacific 31326?
The manufacturer lists 2001–2011 Freightliner Columbia. Confirm the equipment on a 2012–2020 truck with BTS before ordering.
Is the blackout Columbia headlight set a pair?
Yes. Part 31326 includes both driver-side and passenger-side assemblies. The black inner housings distinguish this version from the chrome-inner-housing set.
Does this set include amber turn-signal bulbs?
Yes. Amber 1157 turn-signal bulbs are included. The exact supplied low/high-beam bulb configuration and contents require confirmation.
What low- and high-beam replacement bulbs should I buy?
Ask BTS to confirm the supplied housing and its low/high-beam bulb configuration before ordering replacement bulbs. Match the assembly identification and installed bulbs rather than relying on the vehicle name alone.
Is part 31326 an all-LED headlight set?
No. The manufacturer identifies it as a projection assembly without LED, using replacement bulbs on a 12V DC system. It connects to the existing headlight harness when the mounting and connections match.
















