Restore powerful, high-performance forward visibility and rugged structural defense to your vehicle's lighting system with the Truck-Lite 27010 4"x6" Rectangular Halogen Headlight. Explicitly engineered to serve as a premium upgrade or direct replacement for traditional 4"x6" (165mm) rectangular sealed beam lamps, this 12-volt headlamp is a top choice for commercial fleets, medium-duty delivery vans, vocational utility vehicles, and classic automobiles utilizing multi-lamp headlight configurations.
The Truck-Lite 27010 utilizes a highly advanced multi-surface reflector design paired with a crystal-clear glass lens that significantly optimizes light distribution and prevents pattern distortion. It dramatically outperforms legacy factory lighting, shattering baseline metrics by exceeding DOT minimum beam requirements by an average of 300% on low beam and 225% on high beam. Built with a rugged die-cast aluminum rear housing for rapid heat dissipation and rust resistance, this headlamp features a field-serviceable, replaceable halogen bulb configuration equipped with an H5 connector. This allows fleet maintenance crews to quickly swap an expired bulb in minutes without discarding the entire headlight shell—slashing long-term operational costs and reducing roadside maintenance downtime.
Massive Road Visibility Upgrade: Blasts past legal baseline metrics, exceeding DOT minimum intensity requirements by an average of 300% on low beam and 225% on high beam.
Advanced Multi-Surface Reflector: Focuses light cleanly down the highway where you need it most while utilizing a mechanical aim profile for precise beam targeting.
Premium Clear Glass Lens: Features a heavy-duty, optically clear glass front lens that resists chemical yellowing, hazing, and structural scratching over millions of road miles.
Die-Cast Aluminum Housing: Constructed with a rugged, rust-resistant aluminum alloy rear structure that rapidly draws heat away from the internal bulb filament, extending overall lamp longevity.
Cost-Effective Replaceable Bulb Design: Utilizes a standard, field-replaceable halogen bulb rather than a glued sealed assembly, reducing commercial fleet maintenance waste and expense.
Universal 4x6" Retrofit Fitment: Engineered as a direct drop-in mechanical replacement for industry-standard ANSI #H4656 headlight footprints. (Note: Review for appropriate bucket fit before installing; adapter #95846 may be needed to retrofit certain systems).
