The Subaru GLF front and rear side marker bulbs both utilize a 194 size bulb for proper operation. The replacement chart covers vehicle production spanning 1980 to 1982.
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 listed across all side marker positions on the Subaru GLF, covering model years 1980-1982.
The 194 bulb follows the ANSI standard recognized in both the United States and Canada, classifying it as a regionally standardized automotive lamp.
It is a miniature wedge-type bulb, designated T10, which refers to its tubular shape with a width of 10 millimeters. The wedge base design means the bulb is held in place by the socket itself rather than by pins or a bayonet mechanism.
The 194 operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage category typical of marker and courtesy lighting applications.
The T10 wedge format is a widely produced size, meaning the 194 is physically interchangeable with other bulbs sharing the same base type, provided the voltage and wattage ratings are compatible with the circuit.
On the Subaru GLF, the front and rear side marker positions use the identical bulb specification, which means a single bulb type services both locations across all three listed model years.