Used Ford Fiesta Window Regulator

The sixth-generation Fiesta ran from 2008 to 2017, so a 2009 and a 2012 are both within the same generation and the regulator is very likely compatible, provided you match the side (NS or OS) and door count (3-door or 5-door), as front door regulators differ between those body styles. That said, confirm the exact part against your registration with the breaker before buying, as minor running changes can occur within a generation.

The sixth-generation Fiesta (often called Mk7) ran from 2008 to 2017 and received a facelift around 2013; the door shell and frame dimensions are generally unchanged across that facelift, making regulator interchange likely. However, whether a specific regulator crosses that 2013 boundary cleanly is something you should confirm with the breaker against your registration, as small changes to clips or motor mounts are possible. Always match the side (NS or OS) and whether it is a 3-door or 5-door car.

Trim level does not affect window regulator fitment - a Zetec, Titanium, or ST regulator for the same generation and door position uses the same frame and mechanism. You should still match the correct generation, side (NS or OS), and 3-door versus 5-door body style, as those genuinely change the part. One cosmetic difference to be aware of is that a door card or trim panel pulled from a different trim level may look different, but the regulator itself sits behind the trim and is not visible.

The fifth-generation Fiesta (Mk6) ran from approximately 2002 to 2008, and the sixth-generation (Mk7) from 2008 to 2017, so these are distinct generations with different body structures and the regulators are not a straightforward swap. You should source a regulator from the correct generation for your car, matching the side (NS or OS) and door count. A breaker can confirm against your registration if you have any doubt about which generation you have.

Yes - NS (nearside, passenger side, left) and OS (offside, driver side, right) regulators are mirror images of each other and are not interchangeable. On a 3-door Fiesta the front door is also longer than on a 5-door, so you must also confirm the door count when sourcing the part. Give the breaker your registration so they can match the correct side and body style.

A 2015 Fiesta falls within the sixth generation (Mk7), which ran from 2008 to 2017 and received a facelift around 2013, so your car is a post-facelift Mk7. When asking a breaker for a used regulator, tell them the generation (Mk7), the side (NS for passenger or OS for driver), and whether your car is a 3-door or 5-door, as front regulators differ between those body styles. Confirm the part against your registration with the breaker to account for any running changes during that generation.