Mitsubishi Diamante front and rear side marker bulbs use 168 or 194 bulb sizes depending on production specifications. The replacement chart covers 1992 to 2004 model years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mitsubishi Diamante uses two bulb types across its side marker positions: the 168 and the 194, both of which are ANSI-standard miniature wedge bulbs rated at 12 volts and sharing the T10 form factor.
Although the 168 and 194 share the same T10 wedge base, they are not electrically identical. The 168 draws 4.9 watts while the 194 draws 3.78 watts, meaning the two types are not interchangeable without a wattage mismatch.
The 1995-2004 Mitsubishi Diamante uses the 168 bulb in both the front and rear side marker positions.
The 1992-1994 model years use the 194 bulb in both the front and rear side marker positions.
The front and rear side marker positions share the same bulb type for every model year covered in the specifications, meaning a single bulb type services both locations on any given year.
The T10 wedge base is a tubular, pin-free design that seats by friction rather than by a bayonet or screw mechanism, which is a common trait of low-wattage marker and courtesy light applications.
The 168 bulb is the more widely specified type across the Diamante's production run, covering ten of the thirteen model years listed.
Both the 168 and 194 are recognized under ANSI standards applicable to the United States and Canada, indicating standardized physical and electrical tolerances across manufacturers.