Fit 2004-2017 Freightliner ColumbiaPair Halogens Headlights Headlamps W,Bulbs

When your Freightliner Columbia is pulling long-haul miles across dark interstates or navigating pre-dawn distribution runs, your headlights are not optional equipment — they are your first line of defense and your first line of DOT compliance. This direct-fit halogen headlight assembly pair is engineered specifically for the 2004-2017 Freightliner Columbia, delivering factory-matched illumination out of the box with zero wiring modifications required. Compatibility: This headlight assembly pair fits every Freightliner Columbia produced from model year 2004 through 2017, covering all trim configurations within that production run. Both the driver-side (left) and passenger-side (right) assemblies are included, giving fleet managers and owner-operators a complete, matched set that ensures identical light output and color temperature across the full width of the cab. The mounting bracket positions, wiring connector profiles, and housing dimensions are designed to mirror OE factory specifications, meaning no drilling, no adapter harnesses, and no modifications to your cab's existing wiring loom. If you are uncertain about your exact Columbia build date or connector style, verify your vehicle identification number (VIN) against your current connector type before ordering, or reach out to our support team — we can confirm compatibility fast. Key Benefits: • Complete driver + passenger pair — both headlight assemblies ship together so you restore uniform brightness and eliminate the safety risk and visual mismatch of replacing only one side at a time. • Halogen bulbs included — the kit ships ready to install; no separate bulb sourcing, no last-minute hardware store runs, no downtime waiting on additional parts. • OE-style direct fit — mounting points, wiring connectors, and housing geometry replicate the original Freightliner Columbia factory layout for a bolt-on swap that a single technician can complete in a standard shop bay. • DOT-compliant illumination — restores road-legal light output that satisfies federal motor vehicle safety standards and reduces your exposure during roadside DOT inspections. • Impact-resistant polycarbonate lens — UV-treated to resist yellowing and hazing over years of highway exposure, maintaining clear light projection season after season. • Matched color temperature — both assemblies use the same halogen light source so your cab presents a consistent, professional appearance from the road. Technical Specifications: • Fitment: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Freightliner Columbia • Lamp type: Halogen • Bulb style: H4 or H7 (confirm to your vehicle's existing wiring harness connector before installation) • Lens material: Polycarbonate — impact-resistant, UV-treated • Housing material: ABS thermoplastic — heat-resistant, dimensionally stable • Position coverage: Driver side (left) + Passenger side (right) • Bulbs included: Yes — no separate purchase required • Compliance: Designed to meet DOT/SAE illumination standards for commercial vehicle headlighting Materials and Build Quality: The lens on each assembly is formed from high-grade polycarbonate, the same category of optical plastic used in OEM commercial truck lighting. Polycarbonate resists shattering on impact far better than glass and is treated with a UV-inhibiting coating to slow the hazing and yellowing that plague older, untreated lenses after prolonged sun exposure. The housing behind the lens is manufactured from ABS thermoplastic, a material chosen for its combination of structural rigidity, heat resistance, and low weight. ABS holds its shape under the thermal cycling that a working truck generates — from cold winter starts to extended summer highway runs — without warping or cracking at the seam where the lens meets the housing. Internal reflector geometry is calibrated to direct halogen output into the DOT beam pattern the Columbia platform requires, so light goes where the road is, not into oncoming traffic. Installation Guide: Before beginning, gather a basic socket set (typically 8mm and 10mm), a trim panel clip tool, and the replacement assemblies. Park on a level surface, set the parking brake, and allow the existing headlights to cool completely if the truck was recently running. Step 1 — Open the hood and locate the retaining hardware securing each headlight assembly to the cab mounting points; these are typically bolt-fastened at two to four points. Step 2 — Disconnect the wiring harness connector from the back of the existing assembly by pressing the release tab and pulling straight back. Step 3 — Remove the retaining bolts and slide the old assembly forward and out of its mounting pocket. Step 4 — Slide the new assembly into position, aligning the mounting tabs with the cab brackets. Step 5 — Thread the retaining bolts by hand first to confirm alignment, then torque to the manufacturer's spec (typically 8-12 Nm for plastic-mounted assemblies). Step 6 — Reconnect the wiring harness connector until you feel or hear it click into place. Step 7 — Repeat for the opposite side. Step 8 — Power the truck on and verify both low-beam and high-beam functions before closing the hood. Adjust beam aim if necessary using the adjuster screws on the back of each housing. The complete swap typically takes 30-60 minutes with standard hand tools. What's in the Box: • 1x Driver-side (left) halogen headlight assembly • 1x Passenger-side (right) halogen headlight assembly • Halogen bulbs (pre-installed or included in kit packaging) • Hardware as applicable per kit configuration Why Shop With Us: We stock commercial truck lighting built for the demands of real fleet and owner-operator use, not showroom garage queens. Every order is processed promptly, shipped with tracking, and backed by a responsive support team that speaks the language of working trucks. Whether you're keeping one Columbia on the road or restocking parts across a regional fleet, you get fast answers and parts that actually fit. Replace both headlights on your 2004-2017 Freightliner Columbia today — stay DOT-compliant, stay safe, and stay moving. Add to cart now and get your Columbia lit the right way.