Pit Boss™ 3" Dewatering and Solids-Handling Pump 66M3X0-XXX-C

This line of air-operated diaphragm pumps was developed especially for mining, construction, sump and other operations where a reliable, portable de-watering and solids- handling pump is an everyday requirement. These dewatering pumps were named the “Pit Boss” for its tough, uncompromising performance and construction.


  • Industry leading flow rates
  • Ideal answer to big volume applications - where performance is a must
  • Reliability - Patented "unbalanced" air valve eliminates stalling and freezing
  • Serviceability - Easy access to ball checks and fluid caps for easy maintenance and repair
  • Versatility - Comfort grip handles allow maximum portability
  • Solids-Handling - Capable of pumping semi-solids and solids up to 1" (25.4 mm)
  • Screened Inlet - Keeps unwanted debris out of the pump
  • Intrinsically Safe - Pneumatic operation provides safe use in hazardous and explosive applications
  • Power Suction Lift - Designed to evacuate liquids and solids out of critical areas without fail
  • Typical Applications - mining, construction, and general industrial dewatering and solids handling applications


  • 66312 Air line connection kit: contain piggyback filter/regulator with gauge, pipe nipple and a 5' section of hose
  • P29241-610 Filter/Regulator
  • 637434 Air Section Service Kit
  • 637467-XX Fluid Section Service Kit

Center Body Material

  • Aluminum

Pump Casing Materials

  • Aluminum

Diaphragm Options

  • Hytrel
  • Nitrile
  • Santoprene