Yes this hose reel would be compatible with your machine, the pump on that model is actually a 4000 psi pump. The additional psi comes from the restriction of water through the hose and gun. However, this hose reel does not come with any type of mounting hardware to attach to a pressure washer. This reel is designed to mount to a table or wall.
If you are looking for a hose reel that can be attached to the machine itself, you should look at models DHR50150D or DHR50100D by General Pump.