The Pontiac Streamliner uses H6006 bulb size for both high beam and low beam headlight applications. The replacement chart covers 1950 to 1952 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6006 is the sole bulb type listed across all headlight positions in the Pontiac Streamliner specifications for 1950-1952.
The H6006 is a 5x7-inch rectangular sealed beam unit operating at 12 volts, conforming to ANSI standards recognized in both the United States and Canada.
A sealed beam unit integrates the filament, reflector, and lens into a single glass assembly, meaning the entire unit is replaced rather than an internal bulb component.
The H6006 specification applies to both the high beam and low beam headlight positions across all three model years, indicating a single-unit design that handles both functions within one sealed beam.
The 5x7-inch rectangular form factor of the H6006 is a standardized size, meaning physical fitment is governed by that fixed housing shape rather than by socket or base type alone.
Because the H6006 is a sealed beam rather than a socketed bulb, substitution with a non-sealed-beam light source would require modification to the headlight housing.