Subaru Brat front and rear side marker bulbs use a 194 bulb size across all configurations. The replacement chart covers vehicle production spanning 1980 to 1987.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Subaru Brat uses the 194 bulb for both the front and rear side marker positions across the 1980-1987 model years.
The 194 is an ANSI-standardized bulb type recognized across the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications shared by multiple manufacturers.
The 194 bulb is a T10 miniature wedge type, which refers to its wedge-shaped base that seats directly into a socket without a separate metal base or pins.
The T10 designation describes the bulb's tubular envelope width, expressed in eighths of an inch, placing it in the smaller end of the miniature wedge category.
The 194 operates at 12 volts and draws 3.78 watts, classifying it as a low-wattage bulb suited for marker and indicator functions rather than primary illumination.
Because the same 194 bulb size is specified for both the front and rear side marker positions on the Subaru Brat, a single bulb type serves both locations without substitution or adaptation.
The wedge base design of the 194 means fitment depends on socket compatibility with the T10 form factor, and sockets designed for pin-base or bayonet-base bulbs are not interchangeable with it.