Toyota Previa Instrument Panel Bulb Size

The Toyota Previa instrument panel utilizes 194 and 74 bulb sizes for illumination across various production versions. Data for the specified components covers the period from 1991 through 1997.

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
1995-1997	194
1994	74
1991-1993	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74

Other Locations

Additional Notes

The 194 bulb is the predominant instrument panel bulb type across the Toyota Previa's specification range, appearing in six of the seven model years listed (1991-1993 and 1995-1997).
The 194 is an ANSI-standard miniature wedge bulb rated at 12V and 3.78W, using a T10 wedge base, which is a common format in North American automotive instrument panel applications.
The 74 bulb is an ANSI-standard miniature wedge bulb rated at 12V and 1.4W, using a T5 wedge base, making it physically smaller and significantly lower in wattage than the 194.
The 1994 Toyota Previa instrument panel specification calls for the 74 bulb rather than the 194, representing a direct fitment difference from the surrounding model years.
Because the T5 and T10 wedge bases differ in physical size, the 74 and 194 bulbs are not interchangeable despite both using a wedge-base format and sharing the same 12V operating voltage.
The wattage difference between the two bulb types is notable: the 194 draws 3.78W while the 74 draws only 1.4W, meaning substituting one for the other would also alter the electrical load on the instrument panel circuit.