Ford Probe Map Light Bulb Size

The Ford Probe map light requires bulb size 168 or bulb size 912 depending on the specific version of the vehicle. Data for the lighting components covers the range from 1992 to 1994.

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
1994	168
1993	912
1992	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.	912

Other Locations

Additional Notes

The Ford Probe map light uses two distinct bulb sizes across its 1992-1994 model years, with the 168 appearing in 1992 and 1994 and the 912 appearing in 1993.
The 168 bulb is a T10 miniature wedge type rated at 12V and 4.9W, conforming to ANSI standards for the US and Canadian markets.
The 912 bulb is a T15 wedge type rated at 12V and 12W, also conforming to ANSI standards for the US and Canadian markets.
The 912 is classified as a variant of the 921 bulb. Despite this relationship, the two are not the same part, and the 921 is not listed as a direct replacement for the 1993 Ford Probe map light.
The wattage difference between the two bulb types is notable. The 912 at 12W draws significantly more power than the 168 at 4.9W, reflecting a meaningful difference in electrical load on the vehicle's circuit.
The T10 and T15 designations refer to the tubular envelope size of each bulb, with T15 being physically larger than T10. This size difference means the two bulb types are not interchangeable across the 1992-1994 model years.