The Dodge Spirit high beam and low beam headlight bulbs both utilize a 9004 size. The replacement chart covers vehicle production spanning 1989 to 1995.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Dodge Spirit uses the 9004 bulb for both high beam and low beam headlights across all model years from 1989-1995.
The 9004 is a dual-filament halogen bulb, meaning a single bulb unit contains two separate filaments to serve both the high beam and low beam functions within one housing.
The 9004 operates at 12 volts and draws 65 watts on the high beam filament and 45 watts on the low beam filament, reflecting the greater light output required for high beam use.
The 9004 uses a P29t base, which is a specific connector type that physically determines which socket configurations are compatible with this bulb.
The 9004 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 shared across manufacturers.
Because the 9004 handles both beam functions in the Dodge Spirit, a single failed bulb results in the loss of both high and low beam output on the affected side.
The 9004 is not universally interchangeable with other dual-filament bulb types such as the 9007, as the P29t base uses a keyed connector that differs in pin orientation, preventing cross-fitting without modification.