Did the little plastic tube where you pour windshield washer fluid snap off? It happens all the time, especially in the cold. Don't worry, this generic replacement filler neck is exactly what you need to fix it. It's about 21cm (or 8.27 inches) long and made of durable plastic. This part is designed to be a direct fit for specific Peugeot and Citroën models – namely the Peugeot 206 and 207, and the Citroën DS3, C2, and Xsara. It's listed as compatible with part numbers 643983 and 643230, which are the original equipment numbers. Installing it is usually pretty straightforward; you just push it into the opening on your washer fluid reservoir until it clicks or seals snugly. Once it's in, you'll be able to fill your tank cleanly again without spills all over the engine bay. It's a small, inexpensive part that solves a big annoyance. Make sure to double-check your car's exact model and year against this compatibility list before ordering. Keep your windshield clean and your engine bay dry with this simple fix!