Air compressor motor

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Forum topic by thoggard posted 02-22-2009 05:30 AM 1042 views 0 times favorited 6 replies Add to Favorites Watch
View thoggard's profile


3 posts in 3679 days

02-22-2009 05:30 AM

I recently acquired a Craftsman 3HP 15gal 150psi air compressor with a burned up motor. Anybody have any clue as to where a new motor can be obtained? I googled air compressor motors and the first site I went to stated that the motors they provided were good for all compressors, but craftsman. What gives?

6 replies so far

View bendisplays's profile


40 posts in 3603 days

#1 posted 02-22-2009 08:26 AM


You can find a motor on ebay. Typically what you will be looking for is the rpm and voltage (120 volt or 240 volt single phase) of the motor. This can be found on the name plate. The mounting and type of motor is also on the name plate. Your motor is probably a 56C flange but this is not necessarily fact.

You do want to get a compressor duty motor. Now one thing that you might want to know is that a bad pressure switch may make it look like the motor is blown.

I wish you good luck with your compressor. I bought a 3 hp motor on ebay for $50 so they are cheap.

If you have any questions, please ask.



View raymo's profile


3 posts in 3853 days

#2 posted 02-22-2009 02:46 PM

thoggard try checking farm supply stores also you get good heavy duty motors new relatively cheap and like ben says check the switch just bypas it to test motor

View 8iowa's profile


1587 posts in 3963 days

#3 posted 02-22-2009 03:01 PM

Older compressors required a motor that could hard start against the pressure. Before purchasing another motor, carefully check the nameplate on the present motor, and if you are not sure that a standard NEMA motor is adequate, counsel with a good electric motor shop in your area.

-- "Heaven is North of the Bridge"

View pitchnsplinters's profile


262 posts in 3640 days

#4 posted 02-22-2009 03:39 PM

thoggard, What is the vintage of this compressor? 10 yrs old or 100 yrs old? May help in determining appropriate advice. Oiled? single cylinder? twin cylinder? screw-type? Thanks.

-- Just 'cause a cat has kittens in the oven, it don't make 'em biscuits.

View brianinpa's profile


1812 posts in 3925 days

#5 posted 02-22-2009 05:15 PM

Tractor Supply Company is a good place to shop for electric motors.

-- Brian, Lebanon PA, If you aren’t having fun doing it, find something else to do.

View thoggard's profile


3 posts in 3679 days

#6 posted 02-23-2009 05:14 AM

Thanks for the information gentlemen. I will certainly try the bypass before going shopping.


As far as the age goes, “2001” is imprinted on the bottom of the nameplate so I am assuming that is the year model. The label upon the motor housing states that it is a single cylinder – oil free.

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