Toyota Avalon front and rear side marker bulb sizes include 168, 12961, and 194 options, with the replacement chart detailing bulb specifications across vehicle production years from 1995 to 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota Avalon front side marker uses the 168 bulb across the 2011-2019 model years. This is an ANSI-standard miniature wedge bulb in the T10 form factor, rated at 12V and 4.9W.
The 194 bulb appears in the Toyota Avalon front side marker position for the 1995-1998 and 2005-2007 model years. It shares the same T10 wedge form factor as the 168 but operates at a lower wattage of 3.78W.
Because the 168 and 194 bulbs share the T10 wedge base, they are physically interchangeable in terms of socket fitment. However, they differ in wattage output, which may affect brightness and circuit load.
The 12961 is a Philips-designated part number rather than an ANSI standard code. It is a T10 wedge bulb with a W2.1x9.5d base, rated at 12V and 5W, and it serves the front side marker on the Avalon for the 2008-2010 model years, as well as the 1999 model year.
The 12961 bulb's wattage of 5W places it between the 168 (4.9W) and the higher-draw bulbs used in earlier model years, reflecting its T10 wedge classification alongside the 168 and 194.
The 1157NA and 1034NA bulbs, used in the front side marker of the 2000-2002 and 2003-2004 Avalon respectively, are dual-filament bulbs with a BAY15d bayonet base. This base type is physically incompatible with the T10 wedge sockets used in later model years.
Both the 1157NA and 1034NA feature natural amber glass, which produces the amber color required for side marker compliance without relying on a colored lens. Their dual-filament design provides separate high and low output levels at 21W and 5W.
The 1034NA is described as a variant of the 1157NA. While both share the BAY15d base and natural amber glass, they carry distinct ANSI designations and are not confirmed as direct substitutes for one another.
The rear side marker on the Avalon uses only two bulb types across its listed model years: the 168 for 1998-2002 and 2011-2012, and the 194 for 2003-2010. Both are T10 wedge bulbs, making socket fitment consistent across all rear side marker positions in the specifications.
The rear side marker specifications do not extend to the same range of model years as the front side marker, with rear entries covering only 1998-2012 compared to the front's 1995-2019 span.