Hi Everyone, I'm new to the site and found this website while searching the internet for a replacement engine for my S185. In my search, I also found a site called Pilot Engines who sells light and medium duty diesel engines and they have an entire line up of Bobcat engines. http://www.pilotengines.com/servlet/StoreFront I was able to purchase a Kubota V2203 Tier 2 replacement engine for my machine at a great price and they offered FREE shipping on the engine and the core back. Obviously, that is probably some what built into the price, but the price is reasonable, warranty looks great, and they have been great to work with thus far, and shipping availability was next day. I just wanted to share what I hope is a great option for engine replacements and I will keep you all posted once the engine arrives. It should be here in a couple days. See you around the site.....looks like some great info on here!! Thanks Everyone!!