MRO Field Guide

5HP Compressor Motor vs Gast Motor/Pump: A $125 Industrial Motor Decision

The 5HP 1750RPM Air Compressor Electric Motor gives you full specs at $449.99; the Gast 1000055624 is a new open-box US-made motor/pump at $574.95. Here's how to choose.

Last updated Aug 17, 2026

Quick Verdict

When you need an industrial motor, the first decision isn't brand or price-it's whether you know exactly what your machine requires. The 5HP 1750RPM Air Compressor Electric Motor 184T is the easier motor to spec: its electrical ratings are listed, and it was designed for single-stage and two-stage air compressors. The Gast 1000055624 Industrial Electric Motor / Pump is the Gast-brand alternative, but its exact application isn't identified. If you need a compressor replacement with known ratings, pick the 5HP motor. If you already have a machine that takes this Gast model, the Gast is a legitimate buy.

At a Glance

ProductListed PriceKey Details
5HP 1750RPM Air Compressor Electric Motor 184T Single Phase TEFC 208-230V$449.995 HP, 1,750 RPM, 184T frame, single-phase, 208-230V, 60Hz, TEFC, IP54, compressor duty
Gast 1000055624 Industrial Electric Motor / Pump$574.95Gast, new open box, model 1000055624, made in the United States

Where Each Product Wins

The 5HP Air Compressor Motor wins when you need decisions made for you. The key electrical and mechanical specs are listed up front, and it's aimed at single-stage and two-stage air compressors plus agricultural equipment. That makes it the stronger candidate for a compressor replacement.

The Gast 1000055624 wins when you recognize the model and want a Gast-brand motor/pump. It's the open-box option in this comparison, and buyers who already know what the model belongs to won't need as much spec hand-holding.

Product Notes

5HP 1750RPM Air Compressor Electric Motor 184T Single Phase TEFC 208-230V

5HP 1750RPM Air Compressor Electric Motor 184T Single Phase TEFC 208-230V

Start with the 5HP 1750RPM Air Compressor Electric Motor if your project calls for a compressor-duty motor with a known electrical profile. It lists a 184T frame and a 1,750 RPM base speed, along with a single-phase 208-230V input, 60Hz frequency, TEFC enclosure, and IP54 protection. Those details take the guesswork out of matching a replacement. Add a rolled steel shell, and it lines up with the dust and debris near an air compressor. The limitation is duty: it's designed for compressor and agricultural applications, so if your machine falls outside that scope, you'd be stretching a purpose-built motor. For a single-stage or two-stage air compressor, that focus is a strength.

Gast 1000055624 Industrial Electric Motor / Pump

Gast 1000055624 Industrial Electric Motor / Pump

Choose the Gast 1000055624 when you have already matched the model to your equipment. It's a Gast-brand motor/pump made in the United States, and the unit is presented as fully functional and ready for service. The catch is that the exact application isn't identified, so this purchase relies on your knowledge of the machine rather than a spec sheet. If the model number lines up with what you own, the listed price buys the Gast unit. The limitation is that open-ended duty: it's not a good fit for a shopper who needs a motor/pump defined by RPM, phase, or frame size. This is a model-matching buy, not a spec-matching buy.

Final Choice by Use Case

For a compressor replacement where you know what your setup needs, the 5HP 1750RPM Air Compressor Electric Motor is the clear choice-it carries the compressor-focused specs and the lower price. For a Gast motor/pump you've already identified as the right model for your equipment, the Gast 1000055624 is worth its $574.95 price. If the price gap is your main tiebreaker, the $124.96 difference makes the 5HP motor the lower-priced option.

Products in this article
5HP 1750RPM Air Compressor Electric Motor 184T Single Phase TEFC 208-230VUSD 449.99View on eBayGast 1000055624 Industrial Electric Motor / PumpUSD 574.95View on eBay
5HP 1750RPM Air Compressor Electric Motor 184T Single Phase TEFC 208-230VUSD 449.99View on eBayGast 1000055624 Industrial Electric Motor / PumpUSD 574.95View on eBay

You may also like

Finding more guides for you…