I just bought the entire top and tilt kit at a cost of $800 plus change. I forget the exact amount, for my 3120. I already checked with the dealer regarding installing only one cylinder and there is no top only or tilt only kit. For that, you need to piece them out. The cost of the tilt cylinder by itself is already $400+. Since I have the 3rd SCV, I am only able to use one cylinder. But with the entire kit priced at only slightly more than the cost to peice together one set, I chose to get the entire kit and keep the other in case I need to change or switch according to my needs. Eventually, I will either get the electric hydraulic diverter to allow the loader control to operate the top/tilt together, or I will figure out another way of getting additional connections at the rear. The kit includes all the parts you see in the attached pdf file. As you can see, it's a lot of little parts that makes it a hassle to collect. Since my tractor is under warranty, I also did not want to go aftermarket at this time for fear of voiding my factory warranty, although I imagine the cylinder at least, is much less costly going non-deere. There is one seller on ebay that does sell either the top or tilt cylinder for the deere tractor but it is for the cylinder only. You may want to do a search for "cylinder deere." I believe the seller is redmond equipment, or something like that.