The UD 3000 high beam and low beam headlight bulbs both utilize a 9003 bulb size. The replacement chart covers vehicle production spanning 1995 to 1998.
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 bulb type specified for the UD 3000 across all listed headlight positions for the 1995-1998 model years.
The 9003 is a dual-filament halogen bulb, meaning a single unit contains separate filaments for both high and low beam operation.
The 9003 operates at 12 volts and draws 60 watts on the high beam filament and 55 watts on the low beam filament.
The 9003 uses a P43t base, which is a bayonet-style cap with a 43mm collar, and fitment requires a socket compatible with this specific base type.
The 9003 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications rather than a proprietary design.
Because the UD 3000 uses the same 9003 bulb for both the high beam and low beam headlight positions across 1995-1998, a single bulb type serves the entire headlight assembly.
The 9003 and H4 bulbs share the same dual-filament halogen design and P43t base, making them functionally interchangeable in many applications, though fitment should be confirmed against the vehicle's socket and housing before substitution.