Toyota Tundra Stepwell Bulb Size

The Toyota Tundra stepwell light utilizes a specific 74 bulb size for illumination within the vehicle interior. Data for the provided component covers a continuous range from 2000 through 2018.

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 Size
2018	74
2000-2013	74

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74

Other Locations

Additional Notes

The Toyota Tundra uses the 74 bulb for its stepwell position across all specified model years, spanning 2000-2013 and 2018.
The 74 bulb follows the ANSI standard recognized in both the United States and Canada, classifying it as a miniature wedge type with a T5 envelope.
T5 refers to the tubular glass envelope width, which is five-eighths of an inch, placing the 74 bulb among the smallest wedge-base bulbs used in automotive interior applications.
The 74 bulb operates at 12 volts and draws 1.4 watts, reflecting the low power demands typical of courtesy and stepwell lighting circuits.
The wedge base design means the 74 bulb has no separate metal base or pins; instead, the glass envelope itself is pinched at the bottom to form the electrical contact, which locks directly into a wedge-style socket.
Because the 74 bulb is an ANSI-standardized part, aftermarket and OEM replacements from different manufacturers are generally interchangeable as long as the T5 wedge base and 12V/1.4W ratings are matched.