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Little Giant 6-CIA Submersible Sump or Utility Pump

Part Number 506166

Also known as "Big John" this powerful submersible pump by Little Giant is suitable for a wide range of applications including residential, industrial, agricultural and light commercial use, this automatic sump pump provides efficient and reliable service.

  • 1/3 HP, 230 Volt, 8' (2.4m) Power Cord
  • Screened inlet
  • Epoxy coated cast iron motor housing for corrosion and rust resistance
  • Oil filled motor housing for lifetime lubrication and rapid heat dissipation
  • Mechanical shaft seal (stainless steel spring, nitrile parts, carbon and ceramic faces)
  • Thermal overload protection
Made in America
1 year warranty
Max Litres per hour 10410 @ 1.5m
Max Litres per minute 173.5 @ 1.5m
Max Head - or zero flow height 5.49m
Flow rate at different heights chart below
Amps 4.5
Power usage - watts 720
Length, width, height - mm 242 x 216 x 153
Weight - kg 8.4
Power cord length 2.4m
Shaft material Stainless Steel
Level switch operation ***see below
Thermal shut off (automatic) Yes
Outlet Fitting 1½" female NPT discharge.
1¼" female x 1½" male NPT fitting included
National warranty - Australia wide 1 year


Flow rates at different pumping heights - litres per hour
Model @ 1.5m @ 3m @ 4.6m Head / Shut Off**
6-CIA 10410 6624 2839 5.49
**Head / shut off - The higher the water is pumped, the less the flow until the maximum pumping height is reached. It is critical that this is understood, this height is where the water stops flowing.
***Automatic operation with pressure switch operates pump when water level is between 178mm and 254mm. Pump shuts off when water level falls to between 25mm and 100mm (Pressure switch is non-adjustable).

Aussie's Observations about Little Giant 6-CIA Submersible Sump or Utility Pump

Budget • Good • Better • Best • Superior

Suitable for:

Ponds or other water circulation applications. Little Giant pumps are frequently used in commercial and industrial situations.

What we liked:

Little Giant make the best specialty pumps for these kinds of jobs.

Less than ideal:

Nothing at all, Little Giant are market leaders.


Product not available

Technical Specifications

Product Name Little Giant 6-CIA Submersible Sump or Utility Pump
Max Flow L/Minutelitres per min173.5 @ 1.5m
DimensionsLxWxH mm242 x 216 x 153
Max Flow L/Hourlitres per hour10410 @ 1.5m
Max Head HeightMeters5.49m
Outlet Thread BSPmm40mm
Power Cable Length2.4m
Made inUSA
Model Number506166