Modern LED Upgrade for 4×6 Headlight Systems
If you’re running factory sealed beam headlights on your Peterbilt 379, this 4×6 LED headlight is a strong upgrade in both performance and appearance.
With improved output, a durable housing, and an integrated amber position light, this headlight delivers both function and style in one compact unit.
⚠️ Important: Low Beam Module Only
This product is a low beam headlight only.
- Designed to be paired with a matching high beam headlight
- Required for proper dual headlight operation
Be sure your setup includes both low and high beam units.
Key Features & Benefits
High-Output LED Performance
Delivers improved lighting compared to traditional halogen sealed beams:
- Low Beam: 1,260 lumens
- High Beam (reference output): 1,600 lumens
Provides cleaner, more consistent visibility on the road.
Integrated Amber Position Light
Features a center-mounted dual-function LED bar:
- 9 bright LEDs
- Amber position light for visibility and styling
- Adds a modern look to your truck
Note: Position light requires additional wiring.
Built for 12V and 24V Systems
Compatible with both:
- 12V trucks
- 24V systems (common in heavy-duty applications)
This makes it suitable for a wide range of setups.
Durable IP67-Rated Construction
- Die-cast housing for strength
- IP67 water-resistant design
- Polycarbonate lens for impact resistance
Built to withstand harsh environments and long-term use.
OEM Fit and Easy Installation
- Designed to fit standard 4×6 headlight housings
- Plugs into existing wiring harness
- No major modification required
Fitment
Headlight Size:
- 4″ x 6″ rectangular
Common applications include:
- Peterbilt 379
- Other trucks using 4×6 sealed beam headlights
Performance & Electrical Specs
- Voltage: 12–24V
- Low Beam Output: 1,260 lumens
- Housing: Die-cast construction
- Lens: Polycarbonate
- Water Rating: IP67
- Beam Type: Low beam only
Installation & Technical Notes
- Plug-and-play for main headlight function
- Position light requires additional wiring
- Must be paired with a compatible high beam unit
Professional installation recommended for full system setups.
Build Quality & Compliance
- DOT / SAE compliant
- Meets FMVSS 108 standards
- Designed for proper on-road use
What’s Included
- (1) 4×6 LED low beam headlight
- Integrated amber position light
Frequently Asked Questions About 4×6 LED Headlights
Is this a full headlight or just low beam?
This is a low beam headlight only. You will need a separate high beam unit to complete your setup.
Will this fit my Peterbilt 379?
Yes, if your truck uses 4×6 rectangular headlights, this is a direct-fit upgrade.
Do I need to wire the amber light separately?
Yes, the position light requires additional wiring separate from the main headlight connection.
Are these brighter than halogen headlights?
Yes, these LED headlights provide improved output and more consistent light compared to standard halogen sealed beams.
Can this run on 24V systems?
Yes, this headlight is designed to operate on both 12V and 24V systems.
Is this plug-and-play?
The main headlight is plug-and-play. The amber position light requires additional wiring.
Is this sold as a pair?
No, this listing is for a single headlight.
What should I pair this with?
You should pair this with a compatible 4×6 LED high beam headlight for proper operation.
