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Emglo KU electric motor size and filter

Published Categorized as Emglo 2 Comments on Emglo KU electric motor size and filter

by Benny
(Crystal Lake, IL.)

I have what appears to be an Emglo KU pump on a compressor with no motor.

Emglo Ku Compressor Motor
Emglo Ku Compressor Motor
Emglo Ku Compressor Motor 2
Emglo Ku Compressor Motor 2
Emglo Ku Compressor Motor Missing Filter ?
Emglo Ku Compressor Motor Missing Filter ?
Emglo Ku Air Compressor Pump
Emglo Ku Air Compressor Pump

What size HP/RPM electric motor should I use?

What size diameter pulley should go with it ?

Is there a missing filter on the head of this pump as shown in the last picture?

Appears to be older than 2005, is this a continuous type motor.


Emglo KU electric motor size & filter
by: Bill

The info I found shows it driven by a 1-2 HP motor. That seems a bit small to me.

If I had 240 volts available, and it were my compressor, I’d go at least 3HP and might even go 5 HP if price weren’t an issue.

Anyone else?


Motor mystery?
by: Doug in s.d.ca

The pulley size depends on how big the motor is and what speed it runs at.

The pump is operated at 500-1100 rpm.

Decide your motor (5-6HP or less) depending on how much air and electricity you have available.

Then you can decide on your pulley.


KU motor size / Intake Filter
by: Benny

Thanks for the info!

I can now find a electric motor maybe a 2 or 3 HP with a fixed RPM and than figure out the size pulley to get in the Spec. range. My other concern is the intake area/filter. As seen in the pictures, it has an opening of about a 1″ x 5″ opening. Is it missing an adapter plate or something? Maybe I’ll just cover it with scotchbrite pads….


by: Doug in s.d.ca

Ya know, I can’t really tell, but I’m starting to think this isn’t a KU –

Maybe you can get some better pictures? The intake on the KUs in the parts catalogs appears to be a pipe fitting off the head and parallel to the flywheel.

Might be a good idea to talk to one of the on-line parts places to see if you can verify exactly what you have there.


by: bob

yes i believe it is a ku model pump i have the exact same and yes thats the correct filter, i have an off brand gas motor i cant find any info on that isnt running, on a set of twin tanks, and ku pump. i need to know what hp with a gas motor to run with this


gas engine size
by: Doug in s.d.ca

You might get away with a 80CC or so (~3HP), but for the price diff I’m seeing looking around right now, you might wanna play safe and get something closer to 200CC (6-7HP). It might use a little more gas, but will probably last longer.


KU motor
by: jason

Your ku should have a real 1.5 or two horsepower Electric motor, 15 or twenty amps.

If how to size a motor pulley, we have a guide with a worked example on our site!

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By Bill Wade

About Air Compressors has been helping folks with their Air Compressor Problems since 2002 online. We're a community of DIY and Compressed Air professionals who are keen to support everyone across the globe with their air compressor issues and troubleshooting. Whether you're trying to identify an old air compressor, or troubleshoot an error code on a sophisticated new industrial air compressor - the community at About-Air-Compressors.com is here to help you

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