I am sorry, I can't recall, my wife went into labor last Thursday at 2:30 am and everything since has been a blur. I have tried to catch up/keep up with emails but it is very likely I missed something. Every 6025 spare part can be ordered on tunze.com. There is no rear housing, the rear portion of the pump would be a motor block, 6025.100, honestly if you need a motor, you will generally be better off buying a full new pump, if a pump is that badly worn, likely many parts need to be changed. The front protective grid is 6025.200. I am working from home until Monday, if you need further help, please call, Craig is working, 512-833-7546.