2009 Gator TX 4x2 Engine Replacement/Cross References

I did a search on the internet and can not find the FJ400D-CS04 Kawasaki Engine.(for sale) It says it was made in 2008. I saw different series engines on the net and went to kawasaki site and only saw FJ180 and lower. I didnt know if this made a difference as i know engine numbers and cc's change per brand.

What i wanted to know is a couple of things.

1 How many Horsepower is the FJ400D - CS04 engine? I know it says 401cc

2nd What replaces the FJ400D-CS04 engine that will fit into the 2009 Gator TX 4x2.

I didnt want to buy a motor that would be too high ot wide.I saw different HP 401cc engines so figured i would ask what engines can be used in the 2009 Gator TX 4x2