Ford Excursion Courtesy Bulb Size

Additional Notes

• The Ford Excursion courtesy bulb specifications cover model years 2000-2005, with two distinct bulb types alternating across those years.
• The 168 bulb is a T10 miniature wedge type rated at 12V and 4.9W, conforming to the ANSI standard used in the United States and Canada.
• The 211-2 bulb is a festoon type with an SV8.5 base, a 41mm length, and a significantly higher output rating of 12V and 12W, also conforming to the ANSI standard for the US and Canadian markets.
• The wattage difference between the two bulb types is notable: the 211-2 draws roughly 2.4 times more power than the 168, reflecting their different physical formats and intended applications.
• The Ford Excursion used the 168 wedge bulb in the 2001, 2003, and 2005 model years for courtesy lighting.
• The 211-2 festoon bulb was specified for the 2000, 2002, and 2004 model years.
• Because the two bulb types use entirely different bases, a wedge socket and a festoon socket are not interchangeable, meaning the correct bulb type must correspond to the specific model year.
• The T10 wedge format of the 168 bulb is a push-in design that seats directly into a wedge-style socket without a separate base connector.
• The SV8.5 base on the 211-2 festoon bulb is a cylindrical cap-style fitting held in place by spring-loaded contacts at each end of the bulb housing.