If you're driving a Citroen C1, C2, C3, Nemo, or Xsara with the 1.4 HDI engine—or maybe a Ford Fiesta, Fusion, Peugeot 107/206/207, or even a Toyota Aygo 1.4 D-4D—and your thermostat housing is acting up, this replacement part should fit just right. It comes as a complete unit with the sensor already attached, which makes installation a whole lot simpler. Designed to match a bunch of OEM specs, it's built to handle the heat and pressure of your engine's cooling system reliably. Whether you're a DIYer or taking it to a shop, having the right housing helps keep your engine temp in check and avoids overheating issues. Always double-check your vehicle's exact model, year, and engine code against the list before ordering, but if you're in the 2001-onwards range for these models, chances are this is the part you need. Comes as one ready-to-install housing—no extra pieces to track down.