Dodge W350 front and rear side marker bulbs both utilize a 194 bulb size. The replacement chart covers 1981 through 1993 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Dodge W350 uses the 194 bulb for both its front and rear side marker positions across all listed model years.
The 194 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts with a power draw of 3.78 watts.
The 194 bulb follows the T10 miniature wedge form factor, which uses a wedge-shaped base rather than a pin or bayonet mount, allowing it to be seated directly into a compatible socket without a separate retaining mechanism.
The front side marker position on the Dodge W350 specifies the 194 bulb for the 1981-1993 model years.
The rear side marker position specifies the same 194 bulb for the 1986-1991 model years.
Because both the front and rear side marker positions share the same 194 bulb specification, a single bulb type serves both locations on the vehicle in the years where both positions are listed.
The T10 wedge base is a widely used form factor in automotive lighting, and the 194 designation is part of a family of similar wedge bulbs that includes types such as the 168 and 192, which differ in wattage and are not direct interchangeable replacements despite their physical similarity.
At 3.78 watts, the 194 operates at a relatively low wattage consistent with its role as a marker lamp rather than a primary illumination source.