Jaguar XKR front fog light bulbs use 9005 and H1 sizes, while rear fog light bulbs use P21W size. The replacement chart covers vehicle production years from 2000 to 2015 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Jaguar XKR front fog light uses two distinct bulb types across its model years: the 9005 for 2007-2015 and the H1 for 2000-2006.
The 9005 is an ANSI-standard single-filament halogen bulb rated at 12V and 65W, fitted with a P20d base, and is the standard for the US and Canadian markets.
The H1 is an ECE-standard single-filament halogen bulb rated at 12V and 55W, fitted with a P14.5s base. Although it originates from European and worldwide standards, it also carries approval for use in the US and Japan.
The 9005 and H1 bulbs operate on the same 12V supply but differ in wattage, with the 9005 drawing 65W against the H1's 55W, reflecting a difference in output intensity.
The P20d base of the 9005 and the P14.5s base of the H1 are physically incompatible with each other, meaning the two bulb types are not interchangeable despite both being single-filament halogen designs.
The Jaguar XKR rear fog light uses the P21W bulb, an ECE-standard single-filament signalling bulb rated at 12V and 21W, fitted with a BA15s bayonet base.
The BA15s bayonet base of the P21W is a distinct mounting format from the pin bases used on the 9005 and H1, making the rear fog bulb entirely separate in fitment from the front fog bulbs.
At 21W, the P21W operates at a significantly lower wattage than either front fog bulb type, which is consistent with its classification as a signalling bulb rather than an illumination bulb.
The rear fog light specification for the Jaguar XKR covers the 2000-2002 model years, all of which share the P21W fitment.
The front fog light specification for the 2007 model year marks the transition point from the H1 to the 9005 on the Jaguar XKR, representing a shift from ECE-standard to ANSI-standard fitment.