The Dodge D350 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 tapering plastic base that presses directly into a compatible socket without a separate metal base or locking pins.
The front side marker of the Dodge D350 takes the 194 bulb across the 1981-1993 model years.
The rear side marker of the Dodge D350 takes the 194 bulb across the 1986-1991 model years.
Because the front and rear side marker positions share the same 194 bulb specification, a single bulb type serves both locations on the vehicle.
The T10 wedge base is a widely used form factor in automotive lighting, and 194-type bulbs from different manufacturers are generally interchangeable as long as the voltage and wattage ratings remain consistent with the original specification.
At 3.78 watts on a 12-volt circuit, the 194 bulb draws approximately 0.315 amperes, which is characteristic of low-current marker and clearance light applications.