Jeep Wagoneer Map Light Bulb Size

Additional Notes

• The 906 bulb is the sole map light bulb size listed for the Jeep Wagoneer across the 1985-1990 model years.
• The 906 is an ANSI-standardized bulb type, meaning its physical and electrical specifications follow a recognized North American standard used in both the United States and Canada.
• The 906 belongs to the T10 miniature wedge bulb family, a form factor characterized by a wedge-shaped base that seats directly into a socket without a separate metal base or pins.
• The T10 wedge base design means the bulb is held in place by the tension of the socket itself rather than by a bayonet or screw mechanism.
• The 906 operates at 12 volts, which is consistent with the standard electrical system voltage found in conventional passenger vehicles of that era.
• At 8 watts, the 906 draws a relatively low amount of power, a characteristic typical of interior courtesy and map lighting applications where prolonged use without engine operation is common.
• Because the T10 wedge base is shared across numerous bulb variants, substitution with a physically similar bulb of a different wattage rating could affect socket compatibility or circuit load, making exact specification matching relevant for this application.