PISTON (W/STEM) Product Code: SRV-11041Price: Check LatestPiston and Stem 8-15/16 (22.7cm) L For Server Products pump models CP-G-89mm/83130, CP-G-110mm/83120,CP-G-120mm/83110, CPSSL/67020, CPSSR/67030 (old) Server Products no. 83115