This listing is for a brand new Quincy compressor QTS-3 head rebuild kit. This kit will also work on the QTS-5 which is the four cylinder version of the pump so you would need two of these kits if you wanted to rebuild both sides of the pump. This kit includes gaskets and complete valve plate with valves. This valve plate gasket kit is the same as Atlas Copco part number 2022-1253-02. We attached a picture of a QTS-3 pump to this listing so you can see and compare yours to it. These pumps are usually blue or burgundy in color.