Toyota Tacoma Stepwell Bulb Size

The Toyota Tacoma stepwell light uses bulb sizes 74 and DE3022 depending on the specific version of the vehicle. Information provided covers the range from 1995 to 2004.

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
2002-2004	74
1999-2001	DE3022
1997-1998	74
1995-1996	DE3022

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022

Other Locations

Additional Notes

The Toyota Tacoma stepwell position uses two distinct bulb types across its model years: the 74 and the DE3022, both of which are ANSI-standardized bulbs rated for use in the US and Canada.
The 74 bulb is a T5 miniature wedge type, operating at 12V with a power draw of 1.4W. Its wedge base means it is held in place by friction against the socket walls rather than by a separate locking mechanism or end caps.
The DE3022 is a festoon-style bulb with a 31mm length and end-cap contacts. Festoon bulbs make electrical contact at both ends of the tube, which is a fundamentally different socket interface than the wedge design used by the 74.
Because the 74 and DE3022 use incompatible socket types, they are not interchangeable. Installing the wrong bulb type for a given model year would require a socket adapter or wiring modification.
For the Toyota Tacoma, the 74 wedge bulb applies to the 1997-1998 and 2002-2004 stepwell positions, while the DE3022 festoon bulb applies to the 1995-1996, 1999-2001 stepwell positions.
Both bulb types share the same 12V operating voltage, which is consistent with standard 12-volt automotive electrical systems.
The T5 designation on the 74 bulb refers to the bulb envelope width, expressed in eighths of an inch, placing it among the smaller miniature bulb profiles used in automotive interior applications.
The end-cap contact design of the DE3022 festoon bulb is common in dome and courtesy light sockets, where the bulb spans two contact points within a cylindrical or rectangular housing.