Compare integrated LED headlights, bulb-based projector assemblies and original-style replacements for your Freightliner Columbia. Choose black or chrome finishes, then match the exact application, driver or passenger side and package quantity.
Fitment varies by assembly. For United Pacific projector pairs 31326 and 31346, the detailed listings specify 2001–2011 and require BTS confirmation for 2012–2020 trucks. Check the existing housing, connectors and bulb requirements before ordering.
Start with the assembly and lighting functions you need. Confirm fitment and installation requirements before selecting a housing finish or added light-bar design.
Use the detailed application for the exact assembly. The original-style 31344/31345 listing covers 2005–2020, while projector pairs 31326/31346 list 2001–2011 and require confirmation for later trucks. Compare the original housing, mounts and connections.
An integrated LED assembly and a bulb-based projector with an LED light bar use different light sources. For example, black LED assemblies 35851/35852 have integrated LED beams, while dual-function light-bar projectors 31224/31225 use H7 low-beam and H1 high-beam bulbs.
A matching main-light plug does not mean every function connects automatically. The dual-function light-bar projectors require additional wiring for their LED bars. Review the exact product’s voltage, turn-signal and position-light connections, then follow its installation and aiming instructions.
Many listings supply one selected driver- or passenger-side assembly. Projector sets 31326 and 31346 include both sides. Compare finish, lens design and included components; confirm bulb contents separately when the listing leaves them unspecified.
No. Application ranges vary by manufacturer and assembly. Match the exact product part number and its detailed application to your truck. United Pacific pairs 31326 and 31346 list 2001–2011 in their descriptions; contact BTS to confirm 2012–2020 trucks even though their product titles show a broader range.
Check the selected listing. Several assemblies offer Driver and Passenger choices and supply one selected side. Sets 31326 and 31346 include both driver-side and passenger-side assemblies. A product photograph showing both sides does not establish package quantity.
Not necessarily. Some assemblies retain the main-light plug while added position-light bars require wiring. The black dual-function light-bar projectors 31224/31225 explicitly require additional wiring for their LED bars. Review the instructions for the exact assembly and each lighting function.
This depends on the assembly. Read its contents list for the low beam, high beam and turn signal. Projectors 31224/31225 list included H7, H1 and 3157 bulbs. Sets 31326/31346 include amber 1157 turn-signal bulbs, but their low/high-beam configuration and contents require BTS confirmation. Do not transfer the bulb list from a similar-looking headlight.
The OEM guide describes the original equipment covered by that guide. A replacement housing may use different bulbs; check the replacement manufacturer’s part number and bulb list. For example, the original-style 31344/31345 assembly specifies 9006 low beam and 9005 high beam, which differ from the H7/H1 dual-function projectors.
No. Projector describes the optical design, not the light source. Some Columbia projectors use replaceable bulbs and may also have LED accent lighting. Read the low- and high-beam specifications to distinguish integrated LED assemblies from bulb-based designs.
Compare the selected assembly with your truck’s original housing, mounting points and connectors. Confirm operating voltage, supplied bulbs, additional wiring and package contents. Review the exact product’s installation instructions, stated markings and application restrictions, and aim the replacement correctly after installation.
