Toyota RAV4 Back Up Light Bulb Size

Additional Notes

• The Toyota RAV4 uses three distinct bulb types across its back up light specifications: the 921, 7440, and 1156 for standard positions, with the 3057 appearing exclusively in outer back up light applications on certain model years.
• The 921 is a T15 wedge bulb rated at 12V and 16W under the ANSI standard. It is the most widely specified bulb across the RAV4 lineup, covering the back up light position from 2004-2024 as well as inner and select outer positions in later years.
• The 7440 is a single-filament T20 wedge bulb rated at 12V and 21W. It is specified for the Toyota RAV4 back up light from 1998-2003, and also appears in outer back up light positions through the same period.
• The 1156 uses a BA15s bayonet base rather than a wedge-style fit, which distinguishes it physically from the 921 and 7440. It is rated at 12V and 21W and is specified for the 1996-1997 model years in both the standard and outer back up light positions.
• The 3057 is a dual-filament T25 wedge bulb rated at 12V with a 27W high filament and a 7W low filament. Its dual-filament design sets it apart from the other bulbs in these specifications, which are all single-filament or equivalent.
• The 921 and 7440 are both wedge-style bulbs, but they are not interchangeable. The T15 and T20 designations indicate different physical sizes, and their wattage ratings of 16W and 21W respectively also differ.
• The 3057 outer back up light fitment for the RAV4 carries production date qualifiers. The 2008 model year uses the 3057 only through August 2008, while the 2006 model year uses it from November 2005 onward, indicating mid-cycle hardware changes within those model years.
• The 2003 outer back up light specification transitions from the 7440 to the 921 partway through the model year, with the 921 applying from July 2003 onward. This reflects a mid-year change in the outer lamp assembly.
• For the 2002 model year, the outer back up light specifies the 7440 specifically for vehicles equipped with a fog lamp, indicating that trim or package configuration affects the correct bulb fitment for that year.
• The 2015-2016 inner back up light position uses the 921, the same bulb specified for the standard back up light in those years, though the inner and outer positions are listed as separate fitments with their own specifications.