Yes you can use that but you will need an height adapter because the OEM swivels are taller. That height is needed because the O.D. of the stainless steel boom pipe is machined to just clear the top of the pivot bearing on top of the trolley frame. It is also imperative that when changing that swivel to make sure you loosen the set screws on the pivot bearing and as you start unthreading that the pipe slides through the pivot bearing. If it is seized in the bearing you will press the arch tube out the bottom of the gearbox. I know this first hand.
I would inspect the pivot bearing at this point also. if it is sloppy it will cause unnecessary side load on the swivel and shorten its lifespan.
If the swivel you have is OEM it should have a grease exit port on the opposite side of the grease fitting. I saved that and use it when I grease the ones from KR. Remove one grease fitting and install this when greasing. Do not just remove grease fitting from one side and grease from the other. You will force bearings out that hole, shortening its lifespan. I know this first hand.
Just trying to save you from going thru the school of hard knocks like I did.