The UD 2300 uses a 9003 bulb size for both high beam and low beam headlight applications. Replacement specifications in the chart span 1995 to 1998 model years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 9003 bulb is the sole headlight bulb type specified for the UD 2300 across the 1995-1998 model years, covering both the high beam and low beam headlight positions.
The 9003 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments: one rated at 60 watts for high beam output and one rated at 55 watts for low beam output.
Because both beam positions share the same 9003 bulb, a single bulb type serves the entire headlight assembly on this vehicle.
The 9003 operates on a 12-volt electrical system, which is standard for automotive applications of this type.
The 9003 uses a P43t base, a bayonet-style mount with a 43mm flange that positions and locks the bulb within the headlight housing.
The 9003 is defined under ANSI standards and is recognized in both the United States and Canada, making it a widely available bulb size in North American markets.
The 9003 is electrically and physically equivalent to the European H4 bulb type, though packaging and labeling may differ between markets; this interchangeability is a known characteristic of the ANSI 9003 specification.