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7.5HP 3 Cylinder 2 Stage Air Compressor Pump

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Price: $499.00
Availability: Call or Email For Leadtime
Prod. Code: APP3Y0732T



 This is our 7.5 HP, 3 Cylinder, 2-Stage, air compressor pump with 32 CFM Displacement, 24 CFM @ 175 PSI, and 26 CFM @ 100 PSI.  This unit has an SCFM @ 175 of  24.  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, 3 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.  We have been covering our warranties for almost 31 years.  You can trust in Eaton Compressor for your business or home.  There is nothing like our warranty.  We stock all warranty parts for this pump.  This unit is covered for 5-years and WE, at our factory, cover the warranty.  You will see many warranties on the market that say “2-year warranty”, but the problem is that the warranty is not covered by them (the company that sold it)…most of the time it is covered by the factory that made it.  Here at Eaton Compressor, when you buy a compressor from us, you are buying a warranty that WE cover.  We stock all parts for our compressors and if you would have a problem, we can send the part to you that day or the next day shipment.


This pump runs COUNTER CLOCKWISE rotation as you are looking at the compressor fan or flywheel.  This pump runs at a SUPER slow RPM of 840.  It can be slowed down to 580 RPMs and run with a TRUE 5 HP motor.  Minimum RPM on this pump is 550.  The dimensions on this pump are 13” D x 25”W x 18” H.  The bolt pattern centerline to each hole is 6 5/8” D x 10” W.  The reason this pump is so tough, is it is a 3-Cylinder, or Y, design.  Each cylinder is individually cooled by the air or fan built into the flywheel.  This is one of the coolest running pumps you will find because each cylinder gets air individually into the flywheel fan.  With most inline compressors, or 2 cylinder (1 piston behind the other), they run hotter in certain applications because they do not cool as well as a 3 cylinder design.  This pump DOES NOT have reed valves!  It has a concentric ring valve design.  Concentric ring valves have been around for over 150 years.  We have not gone away from this design because it will last for many, many years to come.  If you look at the competition, they all offer reed valves or finger valves, but both are the same thing, just called different by some manufacturers.  No matter what they are called, reed valves are a cheap design.  With our unit, if you want to clean your valves, intake, or exhaust, you can take the valves out of the cylinder head by unbolting the valve retainer and just pull the valve right out of the head to inspect it.  It is sealed with an O-Ring…no head gasket to fool with when removing valves.  Easy & Quick to take in and out!


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.  They have aluminum throw away- - no insert bearing in the rod journals. 


This pump has large ball 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.  Shipping weight on this unit is 170 lbs.  Best of all, this pump is QUIET!  It runs at 73 dba.  You can stand beside it (5 feet away) and talk to someone on the phone and still understand what they are saying – AWESOME!  When you hear this unit run, it will be music to your ears and you will like when it starts instead of hating it when it starts.  I see pumps of this quality sell for as high as $1,000.00.  You will buy this pump much cheaper and have the same quality or better as the high priced pumps.



We can not ship this UPS!!! We have had flywheels get damaged, cylinder fins get broken, etc.; therefore, we only ship by motor freight. We receive a 75 - 83% Discount on Freight.  Please call or email us for a freight quote.  Our goal is to get you a great quality compressor at the best way of shipping at a reasonable price. **PLEASE NOTE: When sending in payment for compressor, please include the following information with payment: Name, Business Name (if applicable), ship-to address, itemized list of what you have paid for (description of unit with amount, freight and additional services (if applicable). This helps our accounting department and ensures the correct unit is shipped since many are being shipped daily. ** We accept Visa, MasterCard, Discover, money orders, certified checks, and business checks and personal checks. However, if paying by business or personal check, unit will ship 10 days after receipt of check. If you have any questions please feel free to contact us @877-283-7614. This unit's warranty is covered parts for 5 years. The advantage of buying from our company is that you are in direct contact with the factory who knows air compressors (because WE build them). The problem from buying from most dealers is that they do not even know how the compressor operates or how to fix it. If you purchase from us, you will be provided with 24/7 service and we will provide  you with cell phone numbers for technical support.We stock all warranty parts for this unit. Most dealers do not stock all parts for their unit. They have to order it. This makes downtime for you, the customer, that you do not need. We hardly ever see a warranty. We have the best warranty in the business because of the quality and pride put into our unit. Thanks for taking the time to view our products.


Bolt Pattern:

9 7/8" Side To Side

6 1/2" Front to Back

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 for a freight quote today !