I am think it is. When I mounted in on the rhino, they sold me a mount for a 3500lb winch and I had to customize it to work on the 4000. I have been studying and just don't see how I am going to get a mount and the winch in there. Even if it does fit, I don't know if I am going to like not being able to free spool it without having to dig around in there. So yes I am think I may have to get a different bumper.