The Mack LEU headlight bulb uses H6024 size for both high beam and low beam applications. The replacement chart covers vehicle production spanning 2011 to 2016.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mack LEU uses the H6024 bulb type for both high beam and low beam headlights across the 2011-2016 model years.
The H6024 is a 7-inch round sealed beam unit, meaning the lens, reflector, and filament are fused into a single assembly rather than a separate replaceable bulb inside a housing.
Because the H6024 is a sealed beam, the entire unit is replaced when the light fails, not just an internal bulb.
The H6024 operates at 12 volts, which is standard for automotive and commercial vehicle electrical systems.
The H6024 conforms to ANSI standards recognized in both the United States and Canada, placing it within a regulated specification for sealed beam headlights.
The shared H6024 fitment across both the high beam and low beam positions on the Mack LEU indicates the vehicle uses a dual-filament or interchangeable sealed beam configuration rather than separate housings with distinct bulb types.
The 7-inch round form factor of the H6024 is a long-established sealed beam standard common in commercial and heavy-duty vehicle applications.