The bulbs which illuminate the gauges are 194's. The warning lights are smaller. They are either 161's or 1815's...probably 161's....I found a list of bulbs at an Explorer forum. There maybe a thread in the mechanical section here. There is one with a good how to on how to (with pictures) replace the illumination lights. If you turn your ignition slowly it will reach a spot where the warning lights turn on before you have gone to the point of turning the motor over. You should do that 1st and make sure it is burnt out.

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JBA s.s. headers&exhaust, K&N cold air intake, Bosch Iridium Plus 4 plugs, Royal Purple in motor, 5spd & diff.,Superchips programmer, axle girdle. Also have but yet to install KYB Gas-A-Just shocks and Belltech sway bars.