Description: This pump head is a complete head with the unloader, check valves and seals.If you are not sure whether or not you need this head then please feel free to email us through eBay. Basically if you pull the recoil rope on the motor and all three pistons move and none of them has any scarring then this head will work for you. All you will need to do is bolt it on and you will be ready to work. No need to remove the pump from the motor. If you have an RMW or SRMW pump mentioned above then this head will work for you. Fitment： This pump head assembly comes complete and ready to bolt on any of these RMW pumps: RMW2G20, RMW2.2G24, RMW2G23B, RMW2G24, RMW2G25, RMW2.2G20D, SRMW2.2G26. .