Compatibility Please confirm compatibility by your vehicle year, brand, model, and the OE number of the replacement part. Compatible with: 2013-2018 Focus l4 2.0L, 2014-2018 Transit Connect l4 2.5L, 2013-2016 Escape l4 2.5L, etc. See pictures or the details page for more information. OE Standard Performance 100% brand new with OE-grade durability for a reliable driving experience. OE numbers: BE8Z8100A, CV6Z8A080B, CV6Z8A080C, DG9Z8100A, 603-278. Coolant Reservoir Features Made of high-quality PP material. Helps reduce oil dilution and fuel consumption, prevents oil leakage, and lowers the pressure on the cooling system. The antifreeze level can be checked directly without removing the radiator cap, helping to avoid damage to parts. Install and Confidence Includes detailed installation instructions in the package. While it is designed for easy DIY installation, professional installation is essential. Use scenarios - Replace a worn coolant expansion reservoir on a 2013-2018 Focus l4 2.0L. - Service a 2014-2018 Transit Connect l4 2.5L or a 2013-2016 Escape l4 2.5L cooling system. - Use as a compliant OE-style replacement to maintain proper cooling system function in fleet maintenance or personal use.