Ford Maverick Automatic Transmission Indicator Bulb Size

Ford Maverick automatic transmission indicator bulb uses 1893 or 1445 bulb size specifications. The replacement chart covers vehicle production years spanning 1970 to 1977.

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	1893
1973-1976	1445
1970-1972	1893

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W.	1893
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W.	1445

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Additional Notes

The Ford Maverick automatic transmission indicator used two distinct bulb types across its 1970-1977 production span: the 1893 and the 1445.
Both the 1893 and 1445 bulbs share identical electrical ratings of 12 volts and 2 watts, and both carry ANSI standardization recognized in the US and Canada.
The 1893 is a T5 miniature wedge bulb, meaning it uses a wedge-shaped base that friction-fits directly into its socket without a separate metal base.
The 1445 uses a BA9s bayonet-style base, a small single-pin cap that locks into its socket with a twist, which is physically incompatible with the wedge socket used by the 1893.
Despite identical voltage and wattage ratings, the 1893 and 1445 are not interchangeable due to their different base types.
The Ford Maverick (1970-1972) and the 1977 model year specify the 1893 wedge bulb for the automatic transmission indicator.
The 1973-1976 model years specify the 1445 BA9s bulb, reflecting a socket design that differs from the earlier and later configurations.
The shift from the 1893 to the 1445 between the 1972 and 1973 model years indicates a change in the transmission indicator socket design at that production point.