Toyota Tercel Parking Light Bulb Size

The Toyota Tercel parking light utilizes 1157, 168, and 194 bulb sizes depending on the specific production period for the vehicle. Available data covers the range from 1980 through 1998 excluding 1987.

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
1991-1998	1157
1988-1990	168
1983-1986	194
1980-1982	1157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Toyota Tercel parking light specifications cover model years 1980-1998, with three distinct bulb types used across that span: the 1157, 168, and 194.
The 1157 is the most frequently specified bulb across the Tercel's parking light history, appearing in the 1980-1982 and 1991-1998 model years.
The 1157 is a dual-filament bulb rated at 12V with a 21W/5W output and a BAY15d bayonet base, making it physically and electrically distinct from the single-filament wedge-type bulbs used in other Tercel model years.
The 168 and 194 are both T10 miniature wedge bulbs operating at 12V, though they differ in wattage: the 168 draws 4.9W while the 194 draws 3.78W. Despite their shared form factor, they are not rated identically and are not listed as interchangeable within these specifications.
The Toyota Tercel (1988-1990) uses the 168 bulb for parking lights, while the 1983-1986 model years use the 194. Both are T10 wedge-type bulbs, but substituting one for the other would involve a wattage difference.
The BAY15d bayonet base of the 1157 requires a twist-lock socket, which is mechanically incompatible with the wedge-style sockets used by the 168 and 194 bulbs. Vehicles specifying the 1157 cannot accept T10 wedge bulbs without socket modification.
All three bulb types listed are ANSI standards applicable to the US and Canadian markets, indicating these specifications are region-specific and may differ from Tercel variants sold in other markets.
The dual-filament design of the 1157 allows it to serve two brightness levels from a single housing, a characteristic absent in the single-filament 168 and 194 wedge bulbs.