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Bare Pumps > 10HP 4 Cylinder 2 Stage Air Compressor Pump
10HP 4 Cylinder 2 Stage Air Compressor Pump

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Orig. Price: $725.00
Sale Price: $525.00
Availability: In Stock
Prod. Code: APP4V1043T

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43CFM Air Compressor Pump


  • Solid cast iron 2-stage V-4 piston series pump, oil lubricated design to extend pump life, rated at up to 50,000 hours (based on B-10 bearing life rating)
  • Ram-Tek - solid steel, heavy gauge rods, designed for maximum performance and durability
  • Cool-Tek - the coolest running compressors in the industry, air stream technology provides 35% lower operating temperature, reduces moisture build up and extends pump life
  • Flow-Tek - concentric disc valves, deliver maximum air flow and reliability with low replacement costs, easily accessible design provides easy maintenance and durability
  • Industrial grade ball bearing for maximum performance and extended pump life
  • Built-in head unloaders designed for continuous run applications
  • Bolt pattern: 9.25D X 9.25W
  • flywheel included on pump
  • Solid cast-iron cylinders, crankcase, flywheel, crankshaft, and valve plates
  • Large Steel Automotive-Type Filters – not plastic
  • Large site glass for viewing your oil level
  • dimensions of this pump are: 28” W x 21” D x 20.5” H
  • weight:  350Lbs.
  • includes oil - holds 2.5 quarts of oil
  • 73 DBA

The Difference:

                Eaton Compressor delivers overwhelming performance to ensure that they meet the needs of the most demanding environments. Our Pumps require less maintenance, service and downtime than any other compressors in the Air Industry’s. All our Products are designed with exacting tolerance and specifications to deliver all the power that is needed at the jobsite, garage or shop.

“Free Air”:

                This is our 10 HP, 4 Cylinder, 2-Stage, air compressor pump with 43 CFM Displacement, 34 CFM @ 175 PSI, and 38 CFM @ 100 PSI.  This unit has an SCFM @ 175 of  34.  This is usable air or “free air” at pressure – 175 PSI.  This pump can go to 200 PSI, but what we tell all of our customers is even though the compressor will go to a higher pressure, you should run it at the lowest pressure possible to maintain the air pressure needed.  This will give you a higher CFM at a lower pressure and the compressor will run cooler with less compressor wear.  This is true with any compressor on the market.  Lower pressure combined with lower RPM will give you great results and a compressor that will last for many years.  We have this style compressor, 4 Cylinder, in factories, body shops, and many tough applications that we sold over 20 years ago.  If you are looking for a 20 to 30-year compressor pump, this is the one for you and is backed by our Eaton Compressor Factory Warranty.

This pump is all cast iron.  When we say ALL CAST IRON, (not aluminum) that is what we mean.  It has solid cast iron cylinder, cylinder heads, crankcase, flywheel, crank, and forged steel connecting rods – not aluminum!  99% of the pumps you see on the market today have aluminum rods.  This style rod does not come close to a forged steel rod.  I have seen many compressors over the 26 years of building compressors, and many of them break – aluminum rods.  However, I have NEVER seen a steel connecting rod fail in one of our pumps.  The forged steel connecting rods are a $120.00 option included on our pump.  These rods also have a replaceable bearing on the crank journal and on the wrist pin journal.  This is what most of the competition do not have.

This pump has large Timken-Style roller bearing on the crank ends on each end of the crankshaft.  This ensures good crank stability and long compressor bearing life.  Each cylinder is all cast iron with no sleeves or aluminum.  All cast iron prevents cylinder distortion and egg-shaped cylinders when pump gets hot.  This pump has 2 B-Section belt drive.  Many of the pumps you see on the market have one belt…this is twin belt.  Twin belt ensures better belt gripage and longer belt life.  This pump has head unloaders.  This is very nice for continuous run applications such as gasoline driven or electric driven high duty cycle applications.  Head unloaders are an air cylinder in each head.  When air is applied to them, they open or push the intake valves open allowing the pump to go into a free wheel mode.  The cylinders are still moving in a free wheel mode, but it cannot compress the air because the intake valve is held open.  This pulls cool air into the cylinder.  The cool air absorbs the heat in the pump and blows it back out the intake valve.  This is nice when you are sandblasting, etc., under heavy duty cycles.  This pump has a site glass to view your oil level.  NO START-UP KIT REQUIRED!!! This unit comes filled with oil and has filters on the unit.


  • 5 year parts warranty
  • Warranty covers shipping for 90 days, thereafter the customer is responsible for shipping charges incurred for warranty parts.






Please Note:   Shipping costs are not included in the prices shown on our site.  

We do not currently use the freight calculator feature on our site because it does not automatically give our customers the lowest discounted freight rate.  We have recently expanded our National network of freight carriers to provide coverage across the country and into Canada & Mexico.  This ensures our customers the lowest cost freight solutions available - every day!   

Call us at 877-283-7614 or e-mail us at info@polarcompressor.com for a freight quote today !