Plymouth Caravelle Map Light Bulb Size

Additional Notes

• The Plymouth Caravelle map light specifications reference three distinct ANSI-standard bulb types across the 1985-1988 model years: the 906, 194, and 912.
• The 194 and 906 are both classified as T10 miniature wedge bulbs operating at 12V, though they differ in wattage. The 194 draws 3.78W while the 906 draws 8W, making them incompatible substitutes despite sharing the same base form factor.
• The Plymouth Caravelle uses the 194 bulb for the map light in the 1986-1987 model years. At 3.78W, the 194 is among the lower-wattage bulbs in the T10 wedge category.
• The 1988 model year uses the 906 bulb, a T10 wedge rated at 8W. Although the 906 shares the T10 wedge base with the 194, its higher wattage output distinguishes it as a separate specification.
• The 912 is a T15 wedge bulb rated at 12V and 12W, representing the highest wattage among the three bulb types listed in these specifications.
• The 912 is noted as a variant of the 921 bulb. Both share the T15 wedge base, and the two are generally considered interchangeable in many automotive applications, though the 921 carries a slightly higher wattage rating of 18W.
• The 1985 Plymouth Caravelle map light uses the 912, a T15 wedge. The T15 base is physically larger than the T10, meaning 906 or 194 bulbs are not interchangeable with the 912 fitment.
• All three bulb types in these specifications conform to ANSI standards recognized in both the United States and Canada.