Complete Headlight Upgrade for Peterbilt 379
If you’re ready to move beyond sealed beams and basic LED upgrades, this ULTRALIT projection headlight assembly delivers a full transformation in both performance and appearance.
Designed as a direct replacement for the Peterbilt 379, this assembly combines modern LED projection technology with an aggressive blackout look.
Key Features & Benefits
High Output LED Performance
- Low Beam: 1,600 lumens
- High Beam: 2,400 lumens
Provides significantly improved forward visibility compared to traditional sealed beam headlights.
Projection Beam Technology
Unlike standard reflector housings, projection headlights:
- Deliver a more focused and controlled beam pattern
- Improve road illumination
- Reduce unnecessary glare
Ideal for both highway driving and show builds.
Aggressive Blackout Styling
- Black inner housing for a modern, stealth appearance
- Enhances the overall look of your truck’s front end
- Perfect for custom and show truck builds
Full Assembly Replacement
This is not just a bulb upgrade. It includes:
- Complete headlight assembly
- Integrated die-cast mounting arm
- Pre-configured LED system
Designed to replace your entire factory setup.
Direct Fit for Peterbilt 379
- Designed as a direct replacement for Peterbilt 379
- OE-style threaded mounting points
- Includes long wiring loom for connection
Custom Fitment Capability
Also compatible with other models such as:
- Peterbilt 357 / 359 / 365 / 367 / 378 / 389 / 567
Note: These applications may require:
- Custom installation
- Hood modification for proper alignment
Heavy-Duty Construction
- Chrome plastic housing
- Die-cast mounting arm for strength
- Built to withstand vibration and road conditions
Complete Installation Kit Included
Includes:
- Mounting hardware (M8 bolts, washers)
- Quick-splice connector
- Wiring loom
Basic tools required:
- 13mm & 10mm socket wrench
- Wire stripper
- Electrical tape
Performance & Technical Specs
- Voltage: 12–24V DC
- Power Consumption: 70W total
- Current Draw: 6.35A @ 12V
- Low Beam: 1,600 lumens (2.1A)
- High Beam: 2,400 lumens (2.25A)
- Compliance: DOT/SAE, FMVSS 108
- Finish: Black inner housing
Driver & Passenger Options
- Driver Side (Item #35777)
- Passenger Side (Item #35778)
Sold individually. Be sure to select the correct side or order both for a complete upgrade.
Installation Notes
- Direct bolt-on for Peterbilt 379
- Wiring required using included loom
- Custom applications may require modification
Professional installation recommended for best results.
Built for Performance and Style
This headlight assembly is designed for drivers who want:
- Maximum visibility
- Modern LED performance
- Aggressive blackout styling
Perfect for:
- Show trucks
- Custom builds
- Performance upgrades
What’s Included
- (1) LED Projection Headlight Assembly (Driver or Passenger)
- Integrated mounting arm
- Wiring loom
- Mounting hardware
Frequently Asked Questions About Peterbilt 379 LED Headlights
Are these plug and play for Peterbilt 379?
They are designed as a direct replacement with OE-style mounting points, but wiring connection is required.
Do these fit other Peterbilt models?
They may fit models like 357, 359, and 389, but custom installation and modification may be required.
What is a projection headlight?
Projection headlights use a focused lens system to create a more controlled and efficient beam pattern compared to reflector-style headlights.
Are these brighter than sealed beam headlights?
Yes, they provide significantly higher output and improved beam control compared to traditional sealed beams.
Do I need to buy both driver and passenger sides?
Yes, they are sold individually, so you will need one of each for a full replacement.
Are these DOT compliant?
Yes, they meet DOT/SAE and FMVSS 108 standards.
Can these be used on 24V trucks?
Yes, they are compatible with both 12V and 24V systems.
Are these good for show trucks?
Yes, the blackout design and LED performance make them ideal for both show and functional builds.
