Toyota Previa front side marker bulbs use 1034NA, 1157NA, or 194 size bulbs, while rear side marker bulbs use 1157 or 194 size bulbs. The replacement chart covers 1991 through 1997 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota Previa front side marker uses three distinct bulb types across the 1991-1997 model years: the 194, the 1034NA, and the 1157NA, depending on the specific year.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W. It is a single-filament design and was used in both the front and rear side marker positions for the 1991-1992 model years.
The 1157NA and 1034NA are both dual-filament bulbs sharing the BAY15d bayonet base and a 12V, 21W/5W rating. Both carry natural amber glass and conform to ANSI standards for the US and Canadian markets. The 1034NA is described as a variant of the 1157.
Despite their close relationship, the 1034NA and 1157NA are listed as separate part numbers and are not used interchangeably across the same model years on the Toyota Previa front side marker position.
The rear side marker position on the Toyota Previa transitioned from the 194 wedge bulb in 1991-1992 to the 1157 for 1993-1997, representing a shift from a single-filament wedge format to a dual-filament BAY15d bayonet base design.
The 1157 used in the rear side marker position is the clear-glass version of the same base design shared by the 1157NA and 1034NA. All three operate at 12V with a 21W/5W dual-filament output.
The front side marker alternates between the 1034NA and 1157NA across odd and even model years from 1993 through 1997, meaning adjacent model years do not share the same front side marker bulb specification.
The BAY15d bayonet base found on the 1034NA, 1157NA, and 1157 bulbs features offset pins that prevent incorrect insertion, distinguishing it from single-filament bayonet bases used in other automotive applications.