Toyota Camry Turn Signal Bulb Size

Additional Notes

• The 7440NA and 7444NA bulbs share the same T20 wedge base and natural amber glass construction, differing only in filament count. The 7440NA is a single-filament bulb rated at 21W, while the 7444NA is a dual-filament bulb rated at 21W/5W. Despite this electrical difference, their physical base compatibility means substituting one for the other in a socket designed for a specific filament count will result in incorrect function.
• The Toyota Camry (2025-2026) LE, SE, and Nightshade trims equipped with halogen lighting use a 7444NA front turn signal and a 7440NA rear turn signal, while XLE and XSE trims on those same model years use factory-installed LED assemblies that do not take a replaceable bulb of these types.
• The 7443NA and 7444NA are both dual-filament T20 wedge bulbs rated at 12V and 21W/5W with natural amber glass. The 7443NA was specified for the front turn signal on 2013-2016 and 2017 model years, while the 7444NA replaced it in that position from 2018 onward through 2022 and again in 2025-2026. These two types are not always interchangeable despite their similar ratings, as socket keyway configurations can differ between the two.
• The 1034NA, specified for the 1997-1998 front turn signal, is a dual-filament bulb using a BAY15d bayonet base with natural amber glass, rated at 12V and 21W/5W. It is described as a variant of the 1157 and is physically distinct from the BA15s single-contact bayonet base used by the 1156 and 1156NA bulbs specified for earlier model years.
• The 1156 and 1156NA are both single-filament BA15s bayonet bulbs rated at 12V and 21W. The 1156NA adds natural amber glass to the otherwise identical construction. Both types appear across front and rear turn signal positions on the 1983-1996 Camry, with the NA variant used specifically in the front position for 1993-1994.
• The 4157 and 3457 are both dual-filament T25 wedge bulbs rated at 12V and 27W/7W, without natural amber glass. The 4157 was specified for the 2005-2006 front turn signal, and the 3457 for 2002-2004. These bulbs produce a white light output, meaning the amber color of the turn signal on those vehicles is provided by the lens rather than the bulb itself.
• The 921 is a single-filament T15 wedge bulb rated at 12V and 16W, making it the lowest-wattage bulb in these specifications. It was used exclusively in the rear turn signal position for 2002-2004 and is not interchangeable with the T20 or T25 wedge types used in other positions or years due to its smaller base size.
• The 3157NA used for the 2005-2006 rear turn signal is a dual-filament T25 wedge bulb with natural amber glass, rated at 12V and 27W/7W. Its single-filament counterpart, the 3156, was used in the rear turn signal for 2000-2001 and is rated at 12V and 27W. Installing a dual-filament bulb such as the 3157NA into a socket wired for a single-filament application, or vice versa, risks incorrect operation of the turn signal circuit.