Peterbilt 379 Headlights, Housings & Bezels

Upgrade your visibility and front-end styling with our complete selection of Peterbilt 379 headlights. From factory-style dual 4x6 rectangular assemblies to 7-inch single round conversions and high-output LED headlights, our inventory engineered for Peterbilt 379 and 379EX models delivers maximum road illumination, OEM fitment, and long-haul durability.

Heavy-Duty Headlight Assemblies & Upgrades for Peterbilt 379

Restore nighttime visibility and upgrade front-end style with direct-fit aftermarket Peterbilt 379 headlights. Shop complete assemblies, sealed-beam replacements, LED upgrades, and mounting hardware engineered for stock restorations and custom builds.

Choosing the Right Setup: Dual 4x6 vs. 7-Inch Single Round

Select the configuration that fits your housing, brackets, and aesthetic: - Dual 4x6 Rectangular: The traditional factory-style square profile for a classic Peterbilt look. - 7-Inch Single Round: A popular retro-custom look that pairs with custom chrome buckets and brackets. Fitment Tip: Always verify bucket dimensions, mounting alignment, and connector types before ordering.

Halogen vs. LED Headlight Conversions

Halogen: Budget-friendly, traditional warm beam ideal for period-correct restorations. LED: Maximum illumination, lower power draw, sharper beam patterns, and extended service life.

Why Shop Our Aftermarket Headlights?

Commercial-Grade Construction: Weather-sealed, vibration-proof housings built for long-haul durability. Precision Beam Control: Enhanced optics improve road clarity and reduce nighttime glare. Custom Styles: Available in chrome, blacked-out housings, and modern projector designs. Complete your front-end setup with matching Peterbilt 379 cab marker lights. Boost distance lighting with Peterbilt 379 auxiliary driving lights, and custom Peterbilt 379 grilles.

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.