Toyota 4Runner Map Light Bulb Size

Toyota 4Runner map light bulb sizes include 168, 57, and DE3022 specifications across different model generations. The replacement chart covers vehicle production years from 1984 to 2024.

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
2003-2024	168
1998-2002	57
1993-1996	DE3022
1984-1989	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W.	57
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3022
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Toyota 4Runner uses the 168 bulb for its map light across the 2003-2024 model years, making it the most consistently specified bulb type in these records.
The 168 is a T10 miniature wedge bulb rated at 12V and 4.9W. Its wedge-style base requires no separate socket retainer, as the bulb body itself locks into the housing.
The 57 bulb is specified for the Toyota 4Runner (1998-2002) map light. It is a single-filament bulb with a BA9s bayonet-style base, rated at 12V and 1W, making it notably lower in wattage than the 168.
Because the 57 uses a BA9s base and the 168 uses a wedge base, these two bulb types are not interchangeable despite both operating at 12V.
The DE3022 is specified for the 1993-1996 model years. It is a festoon-style bulb with a 31mm length that makes contact through metal end caps rather than a dedicated base socket.
The DE3175 is specified for the 1984-1989 model years and shares the same festoon construction and 31mm length as the DE3022. Both are ANSI-standard bulbs rated at 12V.
Although the DE3022 and DE3175 share the same festoon format and 31mm length, they carry distinct ANSI designations, and substitution between them should be confirmed against housing and contact specifications before use.
All four bulb types across these specifications are ANSI-standard bulbs recognized in both the United States and Canada, indicating standardized availability across North American markets.