Jaguar XJ6 License Plate Bulb Size

The Jaguar XJ6 license plate requires bulb sizes DE3423 or 97 or 1895 depending on the specific production period. Available information covers the range from 1972 through 1997.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1980-1997	DE3423
1974-1979	97
1972-1973	1895

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895

Other Locations

Additional Notes

The Jaguar XJ6 license plate position uses three distinct bulb types across its model range: the DE3423 festoon, the 97 bayonet, and the 1895 miniature wedge.
The DE3423 is a festoon-style bulb measuring 41mm in length with end-cap contacts at both terminals. It operates at 12V and conforms to the ANSI standard recognized in the United States and Canada. This bulb fits the Jaguar XJ6 across the 1980-1997 model years.
The 97 bulb uses a BA15s single-contact bayonet base and is rated at 12V and 13W. It is classified as a variant of the widely used 1156 bulb family and also meets ANSI standards for the US and Canadian markets. This type was specified for the 1974-1979 model years.
The 1895 is a T5 miniature wedge bulb rated at 12V and 0.9W, making it the lowest-wattage of the three types listed. It too carries ANSI certification for the US and Canada, and it was specified for the 1972-1973 model years.
The BA15s base on the 97 bulb is a single-contact bayonet fitting, which is not interchangeable with the end-cap festoon contacts of the DE3423 or the wedge-pin base of the 1895. Each of the three bulb types requires a physically distinct socket.
The DE3423 festoon format is retained without variation across the entire 1980-1997 span of the XJ6 specifications, representing the longest uninterrupted fitment of any single bulb type in this dataset.
The 97 bulb, as a variant of the 1156 family, shares that family's BA15s base but may differ in wattage or filament rating from other 1156-series members, so direct substitution with non-97 variants of that family is not confirmed by these specifications.
The 1895 T5 wedge type, at 0.9W, operates at a substantially lower power level than the 13W rated 97 bulb, reflecting a significant difference in light output between the two earlier fitment periods of the XJ6.