Impeller Replacement EXT APO Base UOM:EACH • New plunger guide bushing

• New plunger guide bushing (patent pending)

It is fitted alongside sensor 149-540 (Sensor

Not necessarily

Confirmed against the HydraMaster CDS 4

listed in the parts list as Gasket

Impeller Replacement EXT APO Base UOM:EACH • New plunger guide bushingOverview Replacement impeller for the external automatic pump out (APO) on HydraMaster truckmounts. HydraMaster part number 000 073 011, listed as Impeller, Replacement for any machine with external APO and, in later manuals, Impeller, Replacement for Posi Flow and Dura Flow. The automatic pump out empties the recovery tank while you keep working. When its impeller wears, the pump out slows, then stops keeping up, and the tank fills usually on the job