The Toyota Land Cruiser dome light utilizes DE3175, DE3425, and 89 bulb sizes depending on the specific version of the vehicle. Available data covers the range from 1969 through 2015.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The DE3175 is a festoon-type bulb rated at 12V with a 31mm length and end-cap contacts, conforming to ANSI standards for the US and Canadian markets. The Toyota Land Cruiser uses this bulb size across the dome light position for model years 1986-2015, making it the most widely specified bulb type in these dome light fitment records.
The DE3425 shares the same festoon construction and 12V rating as the DE3175 but has a longer 41mm length. These two bulbs are not interchangeable despite their similar design, as the physical length difference determines which fits the lamp housing correctly.
The bulb size 89 is a single-filament type with a BA15s bayonet base, rated at 12V and 13W. It is a lower-wattage variant of the 1156 bulb family and represents a fundamentally different base type from the festoon bulbs used in later years, meaning it is not physically compatible with festoon-style sockets.
The Toyota Land Cruiser (1995 Rear Dome Light) has a documented mid-year bulb change, with the DE3425 specified for production up to January 1995 and the DE3175 specified from January 1995 onward. Fitment selection for this year depends on the vehicle's production date.
The 2015 dome light specification carries a production cutoff notation, with the DE3175 applicable only to vehicles produced up to August 2015. This date-based restriction indicates a mid-year change for that model year.
For the 1995-1997 model years, the dome light position is divided into separate front and rear sub-positions, both specifying the DE3175. In all other model years within these records, no such positional subdivision is noted, and a single bulb size applies to the dome light as a whole.