One of America’s most popular sump pumps, the Zoeller M-53 sump pump is known for reliability, durability and performance. Available with an integral 2-pole snap-action float switch. The heat-dissipating cast iron body with powder coated epoxy finish provides maximum pumping performance under the most extreme conditions. With Zoeller’s cool run design, the hermetically sealed, oil-filled motor and non-clogging vortex impeller add up to a long-lasting, trouble-free product.

The Zoeller M-53 Mighty-Mate sump pump.

Zoeller M-53 Mighty-Mate Sump Pump Features:

  • Cast iron switch case, motor & pump housing
  • Engineered thermoplastic base
  • Engineered, glass-filled, plastic impeller with metal insert
  • Stainless steel guard and handle
  • Cast iron sleeve bearings
  • Float-operated, submersible, 2-pole mechanical switch & variable level, long-cycle systems available
  • Corrosion-resistant, powder-coated epoxy finish
  • No sheet metal parts to rust or corrode
  • Stainless steel screws, switch arm, guard, and handle
  • No screens to clog
  • Watertight, neoprene square ring between motor and pump housing
  • Solid, buoyant, polypropylene float
  • Oil-filled, hermetically-sealed, automatic reset thermal overload protected motor
  • Upper & lower sleeve bearings running in oil bath
  • Entire unit pressure-tested after assembly
  • Carbon and ceramic shaft seal
  • Maximum temperature for effluent or dewatering: 130 °F (54 °C)
  • Passes 1/2” (13 mm) spherical solids
  • 1-1/2” NPT discharge
  • On point: 7-1/4” (18 cm)
  • Off point: 3” (8 cm)
  • Major width: 10-3/32” (26.2 cm)
  • Major height: 10-1/16” (25.6 cm)
  • Watertight and dust-tight
  • 3 year limited warranty