The Mitsubishi Starion front side marker bulb size is 194, while rear side marker bulbs measure 194 and 67 in size. The replacement chart contains vehicle production years and bulb size specifications spanning 1983 to 1989.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mitsubishi Starion uses two distinct bulb types across its side marker positions: the 194 and the 67, both conforming to ANSI standards applicable in the US and Canada.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W. Its wedge base design means it is held in place by the socket itself rather than by a separate locking mechanism.
The 67 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 8W. The BA15s base uses a single locating pin, which orients and locks the bulb into its socket with a push-and-twist motion.
At 8W, the 67 draws more than twice the wattage of the 194 at 3.78W. The two bulb types are electrically and physically incompatible with each other due to their differing base designs and wattage ratings.
The front side marker position on the Starion uses the 194 bulb across the entire production run of 1983-1989.
The rear side marker position uses the 67 bulb for model years 1983-1986, then transitions to the 194 bulb for 1987-1989, meaning the front and rear positions share the same bulb type only from 1987 onward.
The 67 bulb is described as a lower wattage variant of the 1156. While the 1156 also uses a BA15s bayonet base, the two are not the same bulb, and substituting a 1156 in a socket specified for the 67 would introduce a higher wattage draw than the circuit was designed for.
Because the 1983-1986 Starion rear side marker uses a bayonet-base bulb while the front uses a wedge-base bulb, the two positions require separate replacement bulbs and are not interchangeable on those model years.