The UD 2600 uses 1156 bulb size for both front and rear turn signal applications. Replacement chart data spans 1995 to 1998 model 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 UD 2600 uses the 1156 bulb across all listed model years (1995-1998) for both front and rear turn signals.
The 1156 is a single-filament bulb, meaning it is dedicated to one lighting function rather than sharing a filament with another circuit such as braking or running lights.
It operates at 12 volts and 21 watts, which places it in the standard range for incandescent automotive turn signal applications.
The 1156 uses a BA15s bayonet base, a single-contact mount where the bulb is inserted and rotated to lock into the socket.
The 1156 designation follows ANSI standards recognized in both the United States and Canada, indicating a standardized specification for the bulb's electrical and physical characteristics.
Because the same bulb type is specified for both the front and rear turn signal positions, the 1156 is interchangeable between those two locations on the UD 2600.