Ford Maverick Courtesy Bulb Size

The Ford Maverick courtesy bulb uses 3 distinct sizes: 194, 1445, and 89, with each bulb size corresponding to specific vehicle applications. The replacement chart covers 1973 through 1977 production years and specifies which bulb size applies to each model year.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1977	194
1974-1976	1445
1973	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	1445
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

Other Locations

Additional Notes

The 1445 bulb is the most frequently specified courtesy bulb across the Ford Maverick data, covering the 1974-1976 model years.
The 1445 is a single-filament bulb with a BA9s base, rated at 12V and 2W, making it one of the lower-wattage types present in these specifications.
The BA9s base is a miniature bayonet-style cap with a 9mm collar, commonly found in small indicator and courtesy lighting applications.
The 1977 Ford Maverick uses a 194 bulb for its courtesy lighting, which is a T10 miniature wedge type rated at 12V and 3.78W.
The T10 wedge format of the 194 bulb relies on the wedge-shaped glass envelope itself to make electrical contact, with no separate metal base required.
The 1973 Ford Maverick uses an 89 bulb, which carries a BA15s bayonet base and is rated at 12V and 13W, a notably higher wattage than either the 194 or the 1445.
The 89 bulb is a lower-wattage variant of the 1156 and shares its BA15s single-contact bayonet base, though the two are not rated identically and are not interchangeable without accounting for wattage differences.
All three bulb types in these specifications conform to ANSI standards applicable in both the US and Canada.
The three bulb types each use a distinct base format, meaning the 194, 1445, and 89 are not physically interchangeable with one another.