The Ford B-7000 front and rear side marker bulbs both utilize a 194 size bulb specification. The replacement chart covers vehicle production spanning 1983 to 1987.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 194 bulb is the sole bulb type specified across all side marker positions on the Ford B-7000, appearing in both front and rear applications.
The 194 bulb is an ANSI-standardized type recognized in both the United States and Canada, which reflects a regulated specification rather than a proprietary one.
It follows the T10 miniature wedge form factor, a base style that uses a tapered plastic wedge in place of a metal pin or bayonet fitting to secure the bulb in its socket.
The 194 bulb operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of marker and courtesy lighting applications.
The front side marker position on the Ford B-7000 uses the 194 bulb across the 1983-1987 model years.
The rear side marker position carries a 194 bulb specification for the 1983-1984 model years.
Because both the front and rear side marker sockets share the same T10 wedge base and voltage rating, the 194 bulb is physically interchangeable between those two positions on applicable model years.
The wedge base design of the T10 means socket compatibility depends on the wedge cavity shape rather than pin spacing, so any replacement must conform to the T10 wedge profile to seat correctly.