Skip to Main Content

Please enable your microphone.


We Are Listening...

Say something like...

"Show me 4health dog food..."

You will be taken automatically
to your search results.


Your speech was not recognized

Click the microphone in the search bar to try again, or start typing your search term.


We are searching now

Your search results
will display momentarily...


Marathon Electric Air Compressor Motor, 3-1/2 HP

SKU # 324119299
Enter Zip Code for price
Product price

Save Up To
See price at checkout Why?
Product Rating is 4.4

Financing Available! Click here for more details...



Pickup In Store

This item will ship within 0 days.

Delivery Options for

This item will ship within 0 days.

Protect Your Purchase

We'll fix it, replace it, or reimburse you for it. Learn More

power plus

Item Information

The Marathon Electric Air Compressor Motor gives you the power to get the job done right.

  • Gexpro cat# GEX09040
  • 3-1/2 HP
  • 3,600 RPM
  • 230 V
  • Fl amps: 15
  • 56 Frame
  • 5/8 shaft size
  • Drip proof
  • Rigid base air compressor motor
  • Ball bearings
  • Manual reset thermal protection
  • Capacitor start/capacitor run design for reduced amperage
  • Single phase footed motor
  • Single direction (clockwise rotation)
  • General purpose
  • Applications include: Commercial & residential air compressors, fans, dairy & poultry equipment, table saws
  • 1 year limited warranty

Specification Description
Brand: Marathon Motors
Amperage: 15 A
Frame Type: 56
Hertz: 60 Hz
Manual Overload Protection: Yes
Motor Phase: Single
Open Drip Proof Housing: Yes
Product Type: Air Compressor Motors
Product Weight: 35 lb.
Rotation Direction: Clockwise
Shank Diameter: 9/14 in. x 1-6/7 in.
Use: Air Compressor
Voltage: 230 V
Warranty: 1-Year Limited
Power Type: Electric
Manufacturer Part Number GEX09040
Marathon Electric Air Compressor Motor, 3-1/2 HP is rated 4.4 out of 5 by 10.
Rated 5 out of 5 by from Works great Had my old motor pulled and the new one installed in 20 min. Have had zero issues so far!
Date published: 2018-11-10
Rated 5 out of 5 by from Perfect replacement motor Perfect fit plenty of power easy to wire I'm glad to install an American made product that replaces the china one directly.
Date published: 2018-08-26
Rated 4 out of 5 by from Part needed in a pinch. Part was what we needed at a time in a pinch for our shop area.
Date published: 2018-08-08
Rated 5 out of 5 by from Air Compressor Replacement Motor Bought this motor to replace the GE motor on my IR air compressor after it shot fire and died. This motor is bigger and heavier than the original. Installed it and went to work running a palm sander for over an hour and then doing a complete paint job. New motor did great, did not overheat or trip thermal overload, I am impressed and sold on it. Time will tell if holds up, but I bet it does....
Date published: 2015-05-04
  • y_2018, m_12, d_9, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasreviews, tv_2, tr_8
  • loc_en_US, sid_324119299, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 5ms

Motor says its CW rotation. Is the rotation direction viewed from the output shaft end or the connection end (what I would call the rear) of the motor? Hoping the CW rotation is viewed from the rear.

Asked by: Westwood
It would be viewed from the rear.
Answered by: BrittanyH
Date published: 2016-09-13

Can this motor be powered with a generator?

Asked by: jperry01
According to factory the 9040 is not to be run with a generator. The motor will run on a generator But will shorten the life of the motor a lot. It will blow out the start & run capacitors. This also voids warranty.
Answered by: Alicia M
Date published: 2018-09-19
  • y_2018, m_12, d_9, h_14CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.9
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_324119299, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 5ms