The Jeep 6-226 headlight bulb uses an H6006 size for both high beam and low beam applications. The replacement chart covers 1956 to 1957 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 an ANSI-standard sealed beam unit used in the United States and Canada, operating at 12 volts with a 5x7-inch rectangular form factor.
As a sealed beam design, the H6006 does not contain a replaceable bulb element. When the unit fails, the entire assembly is replaced as a single component.
The Jeep 6-226 uses the H6006 for both high beam and low beam headlight functions across the 1956-1957 model years, meaning a single bulb type serves both lighting roles.
The shared H6006 fitment across high and low beam positions is a characteristic of early sealed beam systems, where a single unit housed both filaments within one sealed glass envelope.