This style wiper arm was originally fitted on Volvo XC60 models starting in mid 2011. Volvo later superseded all the earlier XC60 models to this style. The arms are interchangable IF you also have the correct corresponding blade to match.
The easiest way to tell them apart is by looking at the arm. This is the later "bent" style arm. The earlier cars used a straight arm.
If your XC60 already uses this style arm this is a direct fit. If your car uses the earlier straight arm and you want to use this updated style arm you'll also need to change to the updated style blade (see related products tab).