Alfa Romeo Stelvio front and rear fog light bulbs use H11 size for replacement. The chart covers 2018 to 2023 production years 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 H11 is a single-filament halogen bulb operating at 12 volts and 55 watts, fitted with a PGJ19-2 base. It is classified under the ECE standard, which governs lighting equipment across Europe and numerous other markets worldwide, and it also carries approval for use in the United States.
The Alfa Romeo Stelvio uses the H11 bulb across both its front and rear fog light positions, making it the sole bulb type present in these fog light specifications.
Front fog lights on the Stelvio take the H11 bulb across the 2018-2020 model years.
Rear fog lights on the Alfa Romeo Stelvio also require the H11 bulb, with this fitment recorded across the 2021-2023 model years.
The PGJ19-2 base is a keyed connector specific to the H11 bulb. It is not interchangeable with the physically similar PGJ19-1 base found on H8 bulbs or the PGJ19-3 base found on H9 bulbs, even though those bulbs share the same general housing shape.
Because the H11 is a single-filament bulb, it serves only one lighting function per socket. It is not designed to combine fog and another lighting role within a single unit.