The Jaguar XK8 side marker utilizes a 12961 bulb size for illumination purposes within the exterior lighting assembly. Data for the specified component covers the range from 1997 to 2006.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Jaguar XK8 uses the 12961 bulb across all listed model years for both front and rear side marker positions.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor with a W2.1x9.5d base.
The T10 designation refers to a tubular bulb body approximately 10mm wide, commonly found in low-intensity automotive marker and interior lighting applications.
The W2.1x9.5d base is a wedge-type base, meaning the bulb is held in its socket by the tension of the base itself rather than by a bayonet or screw mechanism.
The 12961 operates at 12 volts and 5 watts, which is consistent with standard low-power marker lighting circuits in passenger vehicles.
For the front side marker position, the 12961 fitment applies to the Jaguar XK8 across the 1997-2006 model year range.
For the rear side marker position, the 12961 fitment applies across the 2000-2006 model year range.
The shared bulb specification across both front and rear positions means a single bulb type services all side marker sockets on the applicable model years.