That is a pretty good price for that engine but I don't think he is an authorized dealer. When I was looking for a Go Tech, I e-mailed him and asked him if he was an authorized dealer and if the engines he sells had serial numbers. He never answered my questions. Also that engine he is selling might be the older version with the carb that had the leaking issues. I also thought he might be the owner or operator of RC Toro which sells Go Tech engines without serial numbers. Stay away from them too. BUYER BEWARE if you get your engine from either of them.

Your better off buying it from Luis Vazquez at the link I posted earlier and make him an offer. I doubt if you will be able to buy a Go Tech 5 port .21 for less than $180.00 from an authorized dealer.