The product is a Smart Fortwo 1.0L L3 engine cooling coolant expansion reservoir tank, designed for easy bolt-on installation with the included cap. Made of durable plastic, this tank is manufactured by Smart and is a direct replacement for the OE/OEM part with the manufacturer part number 0005768V009. It features a superseded part number of A4505010003 and is compatible with interchange part numbers 0005768V009. This coolant expansion tank is a reliable and high-quality component for maintaining proper engine cooling in your Smart Fortwo