Lincoln Cosmopolitan high beam and low beam headlight bulbs both utilize the H6006 bulb size. The replacement chart covers 1950 through 1954 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lincoln Cosmopolitan uses the H6006 bulb type across both the high beam and low beam headlight positions for the 1950-1954 model years.
The H6006 is an ANSI-standardized sealed beam unit recognized in both the United States and Canada, operating at 12 volts.
A sealed beam unit integrates the filament, reflector, and lens into a single non-serviceable assembly, meaning the entire unit is replaced rather than an internal bulb component.
The H6006 follows a 5x7-inch rectangular form factor, which is a standardized size shared across numerous vehicle applications of that era, making cross-brand fitment possible where the same specification applies.
Because the Lincoln Cosmopolitan uses the same H6006 specification for both high and low beam positions, the headlight assembly relies on the dual-filament design built into the sealed unit rather than separate bulbs for each function.