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The Mi-T-M AR1-PK37-M Rotary Single Stage Air Compressor with Kohler gas engine is a solid performer for a compressor of this size without the price of a diesel engine. Please see the below specs and attached pdf for additional details.

Price posted is based on a prepaid wire transfer to keep the customer’s cost down, but credit card options at an additional cost of 3% to cover these fees is available at checkout. Bank wiring info will be provided and a business check is welcomed at the same lower price, but will take 2 wks to fully clear for checks prior to any shipping.

UPDATE SOLD Out of Patriot physical stock. 9-12-22 ONLY ONE UNIT IN PATRIOT STOCK! UPDATE – In Patriot’s physical stock to cut down on the lead time the in stock units will also have an addtional $175 included in the price for the Optional Pressure Regulator included, please read below for details on cost options. We have rolled out our new website and our working on our pricing, but if a price is posted these are updated prices as mfgs have been raising their prices.

Unlike the majority of our competitors that say the unit is in stock, we stock a lot of the equipment we sell and will provide two price options to avoid the mfg lead times:

1) Ship from Manufacturer – to compete with other online dealers to drop ship from the mfg, this price is obviously lower with only shipping one time but will be subject to any lead time from the mfg – currently estimated from mfg 16-24 wks (pending engines and compressor pumps availability)

2) Ship from Patriot – SOLD Out – to ship a 2nd time from Patriot stock and will ship at actual freight. 

We always welcome phone calls to double check the mfg’s lead time and or quicker shipping options from Patriot’s stock.

Mi-T-M’s portable gas-driven rotary screw air compressor is capable of producing 115 CFM @ 100 PSI, enough to power a 90-pound breaker!  

Compressor Pump:  Integrated air/oil separator · Integrated thermostatic bypass valve · Integrated oil filter · Poly Chain® belt drive system · Easy-to-read oil level indicator · High oil temperature shutdown

Engine:  Electric start – battery and cables included (battery will need acid added) · Low-oil level shutdown

Frame:  Powder-coated steel frame with 1-1/4-inch roll cage, handle, 4-point lifting hook, winch point and tie-down anchors · 15-inch pneumatic tires

Components:  10-1/2-gallon aluminized steel fuel tank · Oil cooler with guard · Pressure gauge · Ball valve controlled 3/4-inch outlet · Pilot valve varies engine RPM based on air demand

Mi-T-M AR1-AP37-M Spec Sheet (click for pdf)


  • CFM @ PSI 115 @ 100
  • Displacement/ Gas Engine 999cc Kohler CH1000 OHV
  • Compressor Single-stage, rotary screw
  • Engine Idle Control Pneumatic

Weights & Dimensions

  • Net Weight 698 lbs.
  • Shipping Weight 770 lbs.
  • Length 50.75 in.
  • Width 30.5 in.
  • Height 43.5 in.

Limited Warranties:

  • 3 Year Kohler Engine
  • 3 Year Standard when Rotorlub Oil, Filter, and Parts are used