Feature 1OE Number: The referencing OE number of this coolant tank are 21721 JD00B, 21721 JD00B, which is molded and designed depend on the original data. 2Fitment: The engine coolant expansion tank is a replacement for Dualis J10 20072016, please check the model and year before ordering. 3Function: Plays the role of balancing the tank pressure, and there is a corresponding scale, indicating the level of the liquid, and intuitively knowing whether the water volume is sufficient. 4Premium Material: The radiator expansion tank is made of high strength ABS plastic material, which is high temperature resistant, wear proof and durable. 5Easy to Install: Stringently manufactured to meet the original standard, good replacement for the old or broken one, improving the time efficiency.SpecificationItem Type:EngineCoolantExpansionTankOE Number:21721JD00B,21721JD00B .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Material: ABSFitment:FitsforDualisJ1020072016Package List1 x EngineCoolantExpansionTank1 xPlastic TubeNotePlease double check the part number of your item, matching information is for reference only.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!