Toyota Avalon Parking Light Bulb Size

Additional Notes

• The Toyota Avalon front parking light specifications cover model years 1995 through 2019, with seven distinct bulb sizes used across that span: 168, 1034NA, 1157NA, 2357NA, 3157NA, 3457NA, and 7444NA.
• The 7444NA is the most frequently specified bulb in the Toyota Avalon front parking light position, covering model years 2013 through 2019 with one exception in 2018, making it the dominant fitment across the dataset.
• The 7444NA and 3457NA are both T-series wedge-base bulbs with natural amber glass and dual filaments operating at 12V. The 7444NA is a T20 wedge rated at 21W/5W, while the 3457NA is a T25 wedge rated at 27W/7W. Despite their similar construction, they are not interchangeable due to differing base sizes and wattage ratings.
• The 2018 Toyota Avalon front parking light position lists two bulb sizes: the 2357NA and the 7444NA. This indicates a split fitment for that model year, meaning the correct bulb depends on the specific vehicle configuration.
• The 3457NA and 3157NA share the same T25 wedge base format and identical wattage ratings of 27W/7W at 12V, both with natural amber glass and dual filaments. The 3157NA was specified for 1998-1999, while the 3457NA covers 2005-2012.
• The 1157NA and 2357NA are both dual-filament bulbs with a BAY15d bayonet base and natural amber glass operating at 12V. The 1157NA is rated at 21W/5W, while the 2357NA draws more power at 26.9W/8W, making them physically similar but electrically distinct.
• The 1034NA, specified for the 2001 Toyota Avalon, is described as a variant of the 1157NA. Both share the BAY15d bayonet base and a 21W/5W rating at 12V, though they carry separate ANSI designations and are listed as distinct part numbers.
• The 168 is a single-filament miniature T10 wedge bulb rated at 4.9W and 12V, without the dual-filament construction found in all other bulbs listed in these specifications. It was specified for the 1995-1997 Avalon front parking light position.
• The "NA" suffix present on most bulb designations in these specifications denotes natural amber glass, which produces an amber-colored output without the use of a separate colored lens or filter.
• All bulb sizes listed in these specifications conform to ANSI standards applicable to the US and Canadian markets, as noted in each bulb description.