Zoeller N53 Mighty-Mate Non-Automatic Sump Pump
- 43 gpm flow rate
- 19.25 inches maximum lifting height listed
- 0.3 hp, 115 volts
- Oil-filled, hermetically sealed motor with thermal overload
- Glass-filled plastic impeller with metal insert
- Stainless steel guard and handle
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An oil-filled submersible pump with a sealed motor and thermal overload protection. The model is sold as non-automatic, so it needs a separate float switch or manual control to cycle.
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ASIN: B004BMMOEIModel: N53Category: Sump Pumps
Overview
Pumping out a sump or flooded pit is the job here: a submersible pump with an oil-filled, hermetically sealed motor and a glass-filled plastic impeller. It runs submerged, with sleeve bearings turning in an oil bath to carry heat away.
An oil-cooled sealed motor with automatic reset overload protection is built for repeated duty. The epoxy coating resists corrosion in wet pits. As a non-automatic model it needs an external switch to turn on and off by itself.
Who it's for
Homeowners or plumbers replacing a pump in a pit with an existing piggyback or tethered switch suit it. A bare pit with no control needs an automatic model.
Pros and cons
- Oil-filled motor runs cooler
- Automatic reset thermal overload
- Corrosion-resistant epoxy finish
- Stainless guard and handle
- No built-in float switch
- Lift height figure looks low
- Discharge size not listed
Performance notes
Output falls as the pump has to push water higher, so the vertical run to the discharge sets the real flow. Oil around the motor pulls heat away during long cycles. The thermal overload cuts power if the motor overheats and resets once it cools.
Specifications
| Brand | Zoeller |
|---|---|
| Model | N53 |
| Dimensions & fit | |
| Maximum Lifting Height | 19.25 inches |
| Capacity & performance | |
| Flow Rate | 43 gpm |
| Power & efficiency | |
| Horsepower | 0.3 hp |
| Voltage | 115 volts |
| Power Source | Ac/dc |
| Construction & materials | |
| Material Type | Plastic, Stainless Steel |
| Finish | Powder coated epoxy |
| Included components | |
| Unit Count | 1 Count |
| Other details | |
| Product Style | Submersible, non-automatic |
| Impeller | Glass-filled plastic with metal insert |
| Motor | Oil-filled, hermetically sealed, automatic reset thermal overload |
Frequently asked questions
Will the Zoeller N53 work without a float switch?
It is sold as a non-automatic pump, so it needs an external switch or manual control to cycle on and off.
How much water does the Zoeller N53 move?
The listed flow rate is 43 gpm.
Is the motor protected from overheating?
Yes. It has an automatic reset thermal overload protected motor.
What voltage does it run on?
115 volts.