Hi JR, thank you for reaching out. Yes, it comes assembled with a coolant tank. You can use the link below to order the assembly while it's 84% off. Have a great weekend! https://www.carparts.com/cooling-fan-assembly/replacement/l160904?can=cpab2020_csqa_20220806

Hi Anthony, I'm pleased to assist you. No, this is just the dual radiator fan. The reservoir is sold separately. It will come as to how you see it on the product image. If interested, click on the link below to order at 83% off the regular price today while supplies last. I hope this is helpful. Enjoy shopping at Carparts.com! https://www.carparts.com/cooling-fan-assembly/replacement/l160904?can=CPGG4850_20220222

Hi Luther, Unfortunately, we do not have that data readily available. This dual radiator fan assembly is a direct fit part and specifically designed only for the selected vehicle application covering from 2001 to 2005 Lexus IS300 base/sportcross 3.0 liter engine only fitment. If you have the matching vehicle, this will fit and will be compatible. The dimensions of the part is not noted anymore since you have to accurately select your vehicle application and the resulting search would show the exact parts designed for that vehicle application only(selecting the year, make, model, submodel and engine size).