I am the supervisor in a truck maintenance shop in the midwestern United States. We have several IH 9900 Series tractors. The OEM part is well over three hundred dollars. This Dorman product is probably the fifth one that I have bought and installed. The drivers LOVE the fact that the reservoir is translucent and not like the OEM that is black plastic with sight glasses.
To the best of my knowledge, the Dorman comes with a ten year guarantee also.
It is a fantastic product costing hundreds of dollars less than the OEM.