High Output LED Upgrade for Dual 4×6 Headlights
If you’re looking for maximum brightness and functionality, this ULTRALIT dual 4×6 LED headlight system delivers serious performance.
Designed to fit OEM dual 4×6 housings, it combines powerful LED output with integrated turn signals and position lighting for a complete upgrade.
Key Features & Benefits
Extreme High Beam Output
- Low Beam: 1,100 lumens
- High Beam: 3,400 lumens
One of the highest output options available in this category, delivering exceptional forward visibility for night driving.
Integrated Multi-Function Lighting
- 52 LED amber front-facing turn/parking light
- Integrated position lighting
- 88 white LED auxiliary light
Combines multiple lighting functions into one streamlined unit.
Dual 4×6 Direct Fit Design
- Fits OEM dual 4″ x 6″ headlight housings
- No need for full conversion assemblies
- Retains factory mounting setup
Multi-Truck Compatibility
Designed for a wide range of trucks, including:
- Peterbilt 379
- Peterbilt 357 / 365 / 378
- Kenworth T600 / T800 / W900
- Freightliner Classic
- Western Star 4800 / 4900 / 6900
Durable Construction with IP66 Rating
- IP66 water-resistant design
- Built to handle rain, dust, and road debris
- Includes rear fender liner for added protection
Plug-and-Play Headlight Connection
- Connects directly to existing headlight harness
- Additional wiring required for turn signal and position light functions
Performance & Technical Specs
- Voltage: 12–24V DC
- Low Beam: 1,100 lumens (17W @ 12V)
- High Beam: 3,400 lumens (51W @ 12V)
- Water Resistance: IP66
- Compliance: DOT/SAE, FMVSS 108
- Configuration: Dual 4×6 system
Driver & Passenger Options
- Driver Side (Item #35873)
- Passenger Side (Item #35874)
Sold individually. Order both for a complete upgrade.
Installation Notes
- Direct fit for dual 4×6 housings
- Plug-and-play for headlight function
- Additional wiring required for signal features
- Fender liner included for rear protection
Professional installation recommended.
Built for Maximum Visibility and Performance
This system is ideal for:
- Drivers needing maximum nighttime visibility
- Highway and long-haul use
- Trucks operating in low-light or rural conditions
What’s Included
- (1) Dual 4×6 LED Headlight Assembly (Driver or Passenger)
- Integrated turn signal and position light
- Fender liner
Frequently Asked Questions About Dual 4×6 LED Headlights
How bright are these headlights?
They deliver up to 3,400 lumens on high beam, making them one of the highest output options in this category.
Will these fit my truck?
They are designed for OEM dual 4×6 headlight housings used on many Peterbilt, Kenworth, Freightliner, and Western Star models.
Are these plug and play?
The headlight function plugs into your factory harness. Turn signal and position light require additional wiring.
Do these replace both headlights on one side?
Yes, each unit replaces the full dual 4×6 setup on one side.
Are these waterproof?
They are rated IP66, meaning they are protected against water and dust under normal operating conditions.
Do I need to buy both sides?
Yes, driver and passenger sides are sold separately.
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.
