2 / 3 / 5 HP Schulz Industrial Grade Single Stage Cast Iron Air Compressor Pump MAX-18
Schulz Brand, Cast Iron, Model: 18 Air Compressor Pump + FREE Intake Filter Assembly-
This makes a great replacement pump for most any air compressor with a 2 - 5 HP motor. With its slotted base, this pump will adapt to many tanks without any modification. If it does not fit your current pump's mounting holes, new holes can easily be drilled. The head and cylinder of this compressor can be flipped around to put the air outlet / discharge on either side of the pump for easy installation. If the fly wheel is a different size than the pump you currently have, it is easy to calculate what size pulley you will need to put on your motor. (you take motor RPM x diameter of motor pulley and divide it by diameter of the pump pulley) that will give you the RPM you pump will be spinning.
If looking at the front of the pump where sight glass is located the bolt mounting holes are 5 7/8" wide center to center, the bolt holes are slotted from front to back so the bolt holes from the front of the pump to the back can be anywhere 4 3/4" center to center to 6 1/4" center to center.