The Pontiac Astre high beam and low beam headlight bulbs both utilize the H6024 size. The replacement chart covers vehicle production spanning 1975 to 1977.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is the sole bulb type listed across all headlight positions for the Pontiac Astre, appearing in both high beam and low beam applications for the 1975-1977 model years.
The H6024 is a 7-inch round sealed beam unit operating at 12 volts, conforming to ANSI standards recognized in both the United States and Canada.
As a sealed beam unit, the H6024 does not contain a replaceable filament or capsule. When the unit fails, the entire assembly is replaced rather than an internal component.
Because the H6024 serves both the high beam and low beam positions on the Astre, a single sealed beam type handles the full headlight function, which is a characteristic of certain round sealed beam headlight systems where separate units are dedicated to each beam mode.
The shared H6024 fitment across both beam positions means the high beam and low beam housings accept the same physical unit, though the two positions remain electrically distinct in their activation.