HEADLIGHTS

Head Lights For Peterbilt Trucks

Headlights are a safety-critical component on any over-the-road truck — proper illumination at night and in adverse weather conditions directly affects the driver's ability to see and react to hazards. Modern Peterbilt trucks have moved toward LED headlight assemblies for their superior light output, longer service life, and lower power draw compared to halogen units. We carry OEM-style replacement headlights, LED upgrade assemblies, and related hardware for Peterbilt trucks including the 389, 579, 567, and 520 series.

Frequently asked questions about head lights

Should I upgrade my Peterbilt's halogen headlights to LED?

LED headlights offer meaningful real-world advantages for over-the-road drivers — significantly brighter output with a whiter color temperature that improves contrast and depth perception at night, plus a service life that far exceeds halogen bulbs. On older Peterbilt models originally equipped with halogen sealed beams or composite housings, direct-fit LED replacement assemblies are available that retain the original mounting points and wiring connections without modification.

Why is one headlight dimmer than the other on my Peterbilt?

Uneven headlight brightness is most commonly caused by a failing bulb in the dimmer unit, a corroded bulb socket reducing current flow, or a poor ground connection at the headlight housing. On trucks with older halogen assemblies, oxidized or fogged lens covers also dramatically reduce light output — lens restoration or housing replacement can recover a surprising amount of illumination. Always check the ground circuit before condemning a headlight housing or bulb.

Are aftermarket Peterbilt headlight assemblies DOT compliant?

Quality aftermarket headlights from reputable manufacturers carry DOT and SAE markings confirming compliance with federal motor vehicle safety standards for light output, beam pattern, and durability. Non-compliant headlights — particularly some very inexpensive import units — may fail to meet beam cutoff requirements, blinding oncoming drivers and creating liability exposure. Always verify DOT/SAE compliance markings when purchasing aftermarket headlight assemblies for a commercial truck.

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