Description
Replacement impeller assembly for Pentair Challenger high-pressure pumps; fits 2 HP full-rated and 2.5 HP up-rated models built after 10/1/1992, including 2F and 2-1/2A (Pentair 355604Z). It mounts on the motor shaft to move water through the pump, restoring proper flow and pressure when the original impeller is worn. Genuine OEM part; verify match to your diffuser and motor HP, then replace the shaft seal during install.
