Find LED, Halogen & Replacement Headlights for Peterbilt 379
Over time, factory headlight lenses can haze, wiring can degrade, and nighttime road visibility can suffer. Our lineup of Peterbilt 379 headlights has what you need to replace and upgrade your existing setup. Choose halogen lights for value, LEDs for stronger, longer lasting beams, or hybrid lighting solutions for a classic look. Shop for modern projector assemblies, vintage lighting styles for a retro conversion, and mounting accessories to ensure the mounting hole alignment is correct. Whether you're rocking double round headlights or a single square setup, we stock replacements to match your personal style. Need a direct-fit item? Add a 4x6 sealed-beam unit.Why Shop Our Aftermarket Headlight Kits?
Commercial grade designs for vibration-heavy, long-haul use. Weather-sealed to help prevent moisture. Cleaner cutoff for safer night visibility. Reliable connectors for fewer lighting issues.Illuminate Your Entire Rig with Peterbilt Lighting & Chrome Upgrades
Don't stop at the headlights. Get a complete upgrade. Add more nighttime visibility and presence with Peterbilt 379 cab marker lights. Boost distance lighting with Peterbilt 379 auxiliary driving lights. Cosmetically pair your style upgrade with a new Peterbilt 379 grille. Adding new chrome complements the lighting and adds a clean, custom finish for your Peterbilt model. For more detailed information about choosing the right replacement headlights for your truck, give our team a call.Frequently Asked Questions About Peterbilt 379 LED Headlights
Will these LED headlights fit my specific year Peterbilt 379?
Our LED headlights are designed to fit Peterbilt 379 models from 1987 to 2007. Trucks manufactured before 1987 or modified with custom headlight buckets may require additional verification. We recommend checking your existing headlight mounting depth, which should be at least 3.5 inches for proper fitment.
Do I need to add resistors or modify my truck's electrical system?
Most of our LED headlights are plug-and-play compatible with your Peterbilt 379's existing wiring harness. No cutting or splicing of factory wiring is required for standard installations.
What's the actual brightness difference compared to stock halogen lights?
Our LED headlights typically produce 3,000-4,500 lumens per light, compared to 700-1,000 lumens from standard halogen sealed beams. This translates to approximately 300-400% brighter illumination with a cleaner, whiter light output (5,700K-6,500K color temperature). The beam pattern is DOT-approved and designed to prevent blinding oncoming traffic while significantly improving your nighttime visibility.
How difficult is the installation process?
Installation typically takes 30-45 minutes per side for most drivers with basic tools. You'll need a Phillips screwdriver to remove the headlight bezels and retaining rings. The most common challenge is accessing the back of the headlight housing in tight spaces. Some drivers find it easier to remove the headlight assembly completely for better access. The LED units are heavier than stock lights, so handle them carefully during installation to avoid dropping them.
What warranty coverage do these LED headlights come with?
Our LED headlights come with manufacturer warranties ranging from 1 to 3 years depending on the brand. The warranty covers defects in materials and workmanship, including LED failure, moisture intrusion, and housing defects. Physical damage from impacts, improper installation, or modifications void the warranty. We recommend keeping your receipt and registering your product with the manufacturer for the fastest warranty service.
