United Pacific– Ultralit 5 3/4 Inch Crystal Headlight Glass Lens
Ultralit 5 3/4 Inch Crystal Headlight with Glass Lens
Upgrade your lighting with the Ultralit 5 3/4 Inch Crystal Headlight from United Pacific. Designed for improved clarity and durability, this headlight features a crystal clear glass lens paired with an aluminum reflector for focused, reliable illumination. Built with anti-vibration construction, it stands up to demanding road conditions while providing a sharp, consistent beam.
A Sylvania 12V 65/55W halogen bulb comes pre-installed, and the included 9007 to H4/9003 adapter plug makes installation simple. This Ultralit headlight is a direct replacement for sealed beam units and meets DOT/SAE and FMVSS 108 standards for legal on-road use. For maximum brightness, the use of a headlight relay harness is recommended.
Product Features
- Manufacturer: United Pacific
- Series: Ultralit
- Item Number: 31386
- Lens Material: Crystal clear glass
- Reflector: Durable aluminum reflector
- Light Output: High and low beam
- Bulb Type: Pre-installed Sylvania 12V 65/55W halogen
- Construction: Anti-vibration, heavy-duty design
- Compliance: DOT/SAE approved, FMVSS 108 certified
- Compatibility:
- Direct replacement for 5-3/4 inch sealed beam headlights
- Works with H4/9003 style connections via included adapter
- Includes: 9007 to H4/9003 adapter plug
- Recommendation: Use with headlight relay harness for optimal brightness
- Sold individually
Performance and Fit
This Ultralit headlight provides bright, crisp road illumination with a clear glass lens that resists yellowing. The aluminum reflector enhances beam precision, while the anti-vibration construction protects the bulb and internal components. Ideal for classic trucks, custom builds, or sealed beam conversions.
- 1958-1964 International Travelall
- 1961-1966 Kenworth W900
- 1957-1962 Mack N Series
- 1967-1987 Peterbilt 288
- 1954-1972 Peterbilt 341
- 1973-1987 Peterbilt 353
- 1967-1987 Peterbilt 358
Installation
- Remove the existing sealed beam headlight.
- Attach the included 9007 to H4/9003 adapter plug.
- Install the headlight into the factory housing.
- Secure the mounting ring and test both high and low beams.
Why You Will Love It
- Crystal glass lens improves clarity and light output
- Reinforced aluminum reflector for durability
- Direct replacement for sealed beam headlights
- DOT/SAE and FMVSS 108 certified
- Pre-installed Sylvania bulb for convenience
- Compatible with relay harness for even greater brightness
Common Questions
- Is the bulb included? Yes, a Sylvania 65/55W halogen bulb is pre-installed.
- Does it replace sealed beams? Yes, it is a direct-fit replacement.
- Is a relay harness required? Not required, but recommended for best output.
⚠️ California Proposition 65 Warning:
This product can expose you to chemicals found in glass, metal, and electrical components, which are known to the State of California to cause cancer and reproductive harm.