Product Overview
If you’re running a classic Peterbilt like the 359, you already know the limitations of old sealed beam headlights. The RetroBright LED headlight gives you the best of both worlds—period-correct styling with modern LED output and reliability. Designed specifically for classic applications, this is a true upgrade without compromising the look of your truck.
Key Features & Benefits
Modern LED Output for Safer Driving
Delivers significantly improved visibility over traditional halogen sealed beams:
- Low Beam: 2000 lumens
- High Beam: 3000 lumens
- Candela: 42,000 (low) / 56,000 (high)
Provides stronger forward visibility while maintaining a controlled beam pattern.
Retro Styling for Period-Correct Appearance
Designed to look like a traditional sealed beam headlight:
- Maintains factory appearance
- Ideal for restorations and classic builds
- No “modern LED look” that clashes with vintage trucks
Plug-and-Play Sealed Beam Replacement
Simple installation with no modifications:
- Direct replacement for common sealed beam sizes
- Standard H4 connector
- No cutting or drilling required
Wide Compatibility with Sealed Beam Standards
Replaces common sealed beam part numbers:
- 4000
- 4040
- H4001
- H5001
- H5006
Perfect for a wide range of classic trucks and vehicles using PAR46 housings.
Efficient & Long-Lasting LED Design
- Lower power draw than halogen
- Reduced heat output
- Up to 6x longer lifespan compared to traditional bulbs
Serviceable LED Cartridge Design
Unlike many sealed units, this design allows for serviceability:
- Replaceable LED components
- Extended product life
- Reduced long-term cost
Durable Construction
- UV-treated polycarbonate lens (stronger than glass)
- Cast aluminum housing
- Built for long-term durability
Color Options
Available in multiple styles depending on your build:
- 3000K Classic White – Warm, vintage look
- 5700K Modern White – Clean, bright modern output
- Yellow Lens Option – European-inspired styling
Performance / Compatibility / Use-Case
- Voltage: 9–18V DC
- Power: 25W (low) / 30W (high)
- Connector: H4
- Beam Type: High / Low (varies by SKU)
Installation / Fitment / Technical Details
- Direct sealed beam replacement
- Plug-and-play design
- No modification required in most applications
Some vehicles with switched ground systems may require an adapter harness.
Designed for vehicles using 5.75″ round sealed beam headlights (PAR46).
Common applications include:
- Peterbilt 359
- Other classic Peterbilt models
- Classic trucks and vehicles using 5.75″ sealed beams
Build Quality / Warranty
- DOT compliant
- Meets SAE requirements for beam pattern and output
- Designed for proper on-road use with compliant beam control
Warranty: 2-year manufacturer warranty.
What’s Included
- (1) 5.75″ LED sealed beam headlight
- Integrated LED system
Note: Sold individually.
Order:
- Qty 2 for dual headlight setups
- Qty 4 for quad headlight setups
Frequently Asked Questions
Will these fit my Peterbilt 359?
Yes, if your truck uses 5.75″ round sealed beam headlights (PAR46), these are a direct replacement.
Are these brighter than factory sealed beams?
Yes—these LED headlights provide significantly more usable light output than traditional halogen sealed beams.
Do these keep the classic look?
Yes, they are specifically designed to maintain a period-correct appearance while upgrading performance.
Are these plug-and-play?
Yes, they connect directly to standard H4 headlight connectors with no modification required in most cases.
What sealed beam numbers do these replace?
These replace common part numbers including H4001, H5001, H5006, 4000, and 4040.
Do I need to buy more than one?
Yes, these are sold individually. Most trucks require 2 or 4 headlights depending on configuration.
Are these DOT approved?
Yes, they are DOT compliant and meet SAE requirements for proper beam pattern and road use.
What’s the difference between Classic White and Modern White?
Classic White (3000K) gives a warm vintage look, while Modern White (5700K) provides a brighter, cleaner appearance.
