Freightliner Century 112/120 Lights

Frequently Asked Questions About Freightliner Century 112/120 Lights

Will these lights fit my specific year model Century truck?

Most aftermarket lights for the Freightliner Century 112/120 are designed to fit model years 1996-2010. However, there are some variations between early models (1996-2004) and later models (2005-2010), particularly in headlight bezels and turn signal configurations. Always verify the specific year range listed for each product, and contact us with your OEM if you need confirmation for your exact truck model.

Are LED upgrades worth it over standard halogen bulbs?

LED upgrades typically provide 3-5 times brighter illumination, last 30,000-50,000 hours compared to 500-1,000 hours for halogens, and draw significantly less power from your electrical system. While the initial cost is higher, most drivers report the improved visibility and reduced replacement frequency make LEDs cost-effective within 12-18 months. Note that some LED headlights may require additional wiring harnesses or resistors to prevent hyperflashing.

How difficult is the installation process for headlights and marker lights?

Headlight replacement typically takes 30-45 minutes per side and requires basic tools including screwdrivers, socket wrenches, and possibly trim removal tools. The main challenge is accessing mounting bolts behind the grille and properly aligning the adjustment screws. Marker lights are generally plug-and-play with standard connectors, taking about 10-15 minutes each. Professional installation runs $75-150 if you prefer not to DIY.

What's the difference between DOT approved and off-road lights?

DOT approved lights meet Federal Motor Vehicle Safety Standards for on-road use, featuring proper beam patterns, intensity limits, and sealed construction. Off-road or auxiliary lights often provide higher intensity but may cause glare for other drivers and can result in inspection failures or citations if used on public roads. All headlights and required marker lights should be DOT certified, while auxiliary fog or work lights can be off-road rated if switched separately.

Why do my new lights fog up or collect moisture inside?

Moisture buildup usually indicates either a faulty seal, improper installation, or lower quality construction. Premium lights feature breather vents and quality gaskets to prevent this issue. If fogging occurs within 90 days on a quality product, it's typically covered under warranty. During installation, ensure all seals are properly seated, avoid touching bulbs with bare hands, and apply dielectric grease to connections to prevent corrosion that can compromise seals.