The Subaru Crosstrek side marker utilizes a 12961 bulb size for the lighting components located on the exterior of the vehicle. Data for the specific bulb requirements covers the range from 2021 to 2024.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Subaru Crosstrek uses two distinct bulb types across its side marker positions: the 12961 and the 168, both of which share the T10 miniature wedge form factor despite carrying different part number designations.
The 12961 is a Philips-designated part number specifying a T10 wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The 168 is an ANSI-standardized bulb designation recognized in the US and Canada, also a T10 wedge type, rated at 12V and 4.9W, placing it fractionally below the 12961 in wattage.
For the front side marker position, the Subaru Crosstrek (2021-2023) uses the 12961 bulb across all three model years without condition.
The 2020 front side marker position carries a fitment condition: the 12961 bulb applies specifically to vehicles equipped with Halogen Capsule Headlamps, making headlamp type a relevant factor when sourcing this bulb for that year.
The front side marker on 2017-2019 models uses the 168 bulb, which differs from the 12961 used in later years despite both being T10 wedge types.
The rear side marker position on 2021-2023 models uses the 12961 bulb without any trim or equipment conditions attached.
The 2020 rear side marker also uses the 12961, and unlike the front position for that year, no equipment condition is noted for the rear.
The rear side marker on 2017-2019 models uses the 168 bulb, consistent with the front side marker specification for those same years.
Although the 12961 and 168 share the T10 wedge base profile, the 12961 carries a specific W2.1x9.5d base designation and a slightly higher wattage rating, which are relevant considerations when evaluating interchangeability between the two types.