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Little Giant 3E-12NRY Permanently Lubricated Submersible Pump

Part Number 503038

Dual purpose oil-filled pump that may be used totally submersed or in-line (fed with pipe or hose). These pumps feature an oil-filled motor housing with a radial lip seal on the motor shaft. They have an exceptional life expectancy because the oil serves as a continuous lubricant for all moving parts and the shaft seal. This non-toxic dielectric oil, often paired with an aluminium, cast iron or plastic housing, also helps dissipate the heat build-up found in a continuously running pump. For commercial, industrial and home applications including statuary fountains, water displays, air conditioners, machine tool coolants, and many other applications where liquid must be transferred or recirculated.

  • Operates submersed or in-line
  • Epoxy-coated aluminium housing
  • 1/2" female NPT inlet with snap off screen for easy cleaning
  • 1/2" male NPT outlet accepts 20mm hose
  • Thermally protected.


Made in America
1 year warranty
Max Litres per hour 1980
Max Litres per minute 33
Head - or zero flow height 4.8m
Flow rate at different heights Chart below
Power usage - watts 200W
Maximum liquid temperature 50°C
Length, width, height - cm 18 x 11 x 14
Weight 2.4kg
Power Cord length 3.6 metres
Shaft material Stainless Steel
Thermal shut off (automatic) Yes
Inlet Fitting 1/2" female NPT
Outlet Fitting 1/2" male NPT
National warranty - Australia wide 1 year


Flow rates at different pumping heights - litres per hour
Model @ .3m @ .9m @ 1.5m @ 3m @ 4.6m Head / Shut Off**
3E-12NY 1892 1646 1275 794 246 6.4m
**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.

Aussie's Observations about Little Giant 3E-12NRY Permanently Lubricated Submersible Pump

Budget • Good • Better • Best • Superior

Suitable for:

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.


Technical Specifications

Product Name Little Giant 3E-12NRY Permanently Lubricated Submersible Pump
Max Flow L/Minutelitres per min33
DimensionsLxWxH mm180 x 110 x 140
Max Flow L/Hourlitres per hour1980
Max Head HeightMeters4.8
Inlet Thread BSPmm12.5mm Female NPT
Outlet Thread BSPmm12.5mm Male NPT
Power Cable Length3.6
Made inUSA
Model Number503376