Freightliner Century 112/120 LED Headlights

Frequently Asked Questions About Freightliner Century 112/120 LED Headlights

Will these LED headlights fit my specific Freightliner Century model year?

Our LED headlights are designed to fit Freightliner Century Class 112 and 120 models from 1996 to 2011. They use the standard dual round headlight configuration (4x6 inch rectangular or 5.75 inch round depending on your specific model). Before ordering, verify your truck uses the quad headlight setup typical of these models. If your Century has a different headlight configuration due to custom modifications, please contact our support team with your OEM for compatibility verification.

Do I need any special wiring harnesses or adapters to install these LED headlights?

Most of our LED headlights are designed as direct plug-and-play replacements using your existing H4 or 9003 connectors. However, some older Century models (particularly pre-2000) may require an H4 to H13 adapter harness, which we offer separately. Additionally, you may need to install load resistors or update your flasher relay to prevent hyper-flashing of turn signals if your LEDs include integrated turn signal functions. No cutting or splicing of factory wiring is required for standard installations.

How difficult is the installation process, and what tools do I need?

Installation typically takes 1-2 hours and requires basic hand tools including Phillips and flathead screwdrivers, and possibly a 10mm socket for headlight retention rings. The process involves removing the grille (held by plastic clips), unscrewing the headlight bezels, disconnecting the old sealed beams, and installing the new LED units. The most challenging part is often accessing the lower headlights, which may require removing the bumper on some models. We recommend having a second person to help align the lights during final adjustment.

What's the actual light output difference compared to stock halogen lights?

Our LED headlights typically produce 3,000-4,500 lumens per bulb compared to 700-1,000 lumens from stock sealed beam halogens. This translates to approximately 300% more usable light on the road. The color temperature ranges from 5,000K to 6,500K, providing a crisp white light that reduces eye strain during night driving. Most drivers report significantly improved visibility at 500+ feet, with better peripheral illumination and more defined road marking visibility in rain and fog conditions.

Are these DOT approved, and will they pass state inspections?

All LED headlights we carry for the Freightliner Century are DOT approved and SAE compliant when properly installed and aimed. They feature the required DOT marking on the lens. However, proper aiming is crucial for passing inspections - LEDs often require readjustment from factory sealed beam positions due to different beam patterns. Some states have specific requirements about headlight color temperature (must be white, not blue-tinted), so we recommend choosing LEDs in the 5,000K-6,000K range for maximum compliance. Always check your specific state regulations regarding aftermarket lighting modifications.