Got a leaky or cracked coolant reservoir? Don't sweat it – this replacement tank is here to save the day. It's designed to fit a bunch of models, including Ford Escape (2001-2012), Mazda Tribute (2001-2006, 2008-2011), and Mercury Mariner (2005-2011). Make sure to check your part numbers: YL8Z8100AA, YL8Z8A080AE, BL8Z8A080A, or 603-215. This thing is made from tough PA plastic that can handle heat and vibration without cracking. Why replace it? Well, a good reservoir helps keep your cooling system running smoothly, which means better engine performance, less wear, and improved fuel efficiency. It comes with the cap included, so you're getting a complete set. Installation's a bit of a job, so we recommend getting a pro to handle it if you're not super confident under the hood. Oh, and it's backed by a solid 3-year warranty, so you know it's built to last. Keep your ride cool and running right!