Harbor Freight Tools


3 HP 145 PSI Cast Iron Twin Cylinder Air Compressor Pump

Powerful air compressor pump fits compressors from most manufacturers

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NORTHSTAR 4592900 at $329.99 Save $230.02

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Built out of durable cast iron, this air compressor pump features splash lubrication to keep the pump running cool. Also features an oil sight glass for easy maintenance. For home or industrial use, this air compressor pump is an ideal replacement for most 3 HP compressors.

  • Air delivery: 10 CFM @ 90 PSI, 11 CFM @ 40 PSI (1050 RPM)
  • Heavy duty cast iron construction
  • Splash lubrication keeps pump running cool
  • Oil sight glass for easier maintenance
  • Cast iron frame and cylinder

Replacement Parts in Stock

Call to Order: 1-800-444-3353

View Available Parts

Important Information

  • This is a clearance item. Requires a 3 HP motor
  • This item is subject to a 20% restocking fee

67697, 60638, 60383
Flow rate
10 CFM @ 90 PSI, 11 CFM @ 40 PSI
Horsepower (hp)
Maximum pressure (PSI)
145 PSI
Speed (max)
1050 RPM
Product Height
16-1/2 in.
Product Length
12-1/2 in.
Product Width
11 in.
Shipping Weight
49.85 lb.
Stroke length (in.)
1.97 in.
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.