Toyota RAV4 Stepwell Bulb Size

Toyota RAV4 stepwell bulb utilizes 2 distinct sizes: 12961 and 168, with each bulb size corresponding to specific vehicle configurations. The replacement chart covers 2019 through 2024 model years and documents stepwell bulb specifications across this production range.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Type	Shop
2021-2024	12961	Check Price
2019-2020	168	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price

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Additional Notes

The Toyota RAV4 stepwell uses two distinct bulb types across the 2019-2024 model years: the 168 and the 12961, both of which share the T10 miniature wedge form factor.
The 168 is an ANSI-standardized bulb recognized across the US and Canadian markets, operating at 12V and 4.9W.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The W2.1x9.5d base specification on the 12961 describes a wedge-type base where 2.1 refers to the wire contact width in millimeters and 9.5 refers to the base length in millimeters.
Although both bulbs share the T10 form factor, the 12961 draws 5W while the 168 draws 4.9W, reflecting a minor but measurable difference in power consumption.
The Toyota RAV4 (2021-2024) uses the 12961 bulb for the stepwell position.
The 2019-2020 RAV4 uses the 168 bulb for the same stepwell position, indicating a fitment difference between these model year groups despite the shared T10 shape.
Because the 168 and 12961 are not the same part, substituting one for the other without confirming base and voltage compatibility with the specific model year carries a fitment risk.