The Cadillac Escalade EXT side marker utilizes a 194 bulb size for illumination across all listed vehicle applications. Data for the specified component covers the period from 2002 through 2008.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Cadillac Escalade EXT uses the 194 bulb for both front and rear side marker positions across all model years from 2002-2013.
The 194 is classified as a miniature wedge bulb, designated T10 in the international bulb sizing system, where "T" refers to the tubular shape and "10" indicates the width in eighths of an inch.
The 194 bulb operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage category typical of marker and courtesy lighting applications.
The T10 wedge base design means the bulb is held in its socket by the tension of the base contacts alone, with no separate metal bayonet pins or screw threads involved in retention.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification conforms to a defined performance and dimensional standard rather than being a proprietary size.
Because the front and rear side marker positions share the same 194 bulb across the entire 2002-2013 production run of the Cadillac Escalade EXT, a single bulb type services all four side marker sockets on the vehicle.
The T10 wedge format is shared by several bulb numbers in the miniature bulb family, including the 168 and 194, which are physically similar but differ in wattage, making substitution between them a consideration when exact wattage matching is required.