Puma Air Compressor Parts (2021 Round-up List)

| Last Updated: January 30, 2021

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Your Puma air compressor user manual shows what parts your tool relies on. And it tells you how to maintain each one. But how about when a malfunction plays you tricks? Do you need to replace one or several parts of the air compressor?

Avoid reaching new anxiety levels by keeping the following information at hand. 

Comparison Chart of Puma Air Compressor Parts


Part Type


2E21-025T, Puma Pressure Switch, 95-125 psi, 1 way

Pressure Switch

2E21-025T, Puma Pressure Switch, 95-125 psi, 4 way

Pressure Switch

Air Compressor Head Reed Valve Plate Assembly With Gaskets Inlet Exhaust

Valve Plate

Puma Air Compressor Pump, 2 Cylinder Single Stage, 125 PSI, 12 CFM 900 RPM


Puma 1" NPT Canister Air Filter


Puma 1/4" Unloading Valve 140-175 psi


Puma 1/2" Check Valve


Can Any Part Be Used on All Puma Air Compressors? 

The short answer is that yes, you can use any part, as long as it fits the technical requirements. But the question doesn’t end here, and you’ll probably want to ask yourself if you should really do it.

Still, to operate and maintain your Puma air compressor as recommended by the manufacturer, buy parts sold for this brand. Notably, in many instances, not using original parts with your compressor can result in voiding its warranty!

What Should I Look For When Buying Puma Air Compressor Parts? 

During your research, you’ll bump into many different Puma air compressor parts. Some labeled as genuine, others as compatible. Here’s what we advise you to do:

Pick Certified, Genuine Parts

Such certified, genuine parts are guaranteed to perfectly match the technical requirements for your type of air compressor. Don’t skimp on quality and go with what the manufacturer recommends. It’s the only thing you can do to ensure that you’re running your air pressure at its best.

Never Compromise On Quality

Paying a higher upfront cost when purchasing Puma air compressor parts will save you money in the long run. If you pay a decent amount of money when purchasing your air compressor, why would you do otherwise when it comes to its maintenance or repair?

Double Check Their Compatibility

Finally, yet importantly, whatever part you decide to buy, you should first make sure it’s the right profile. The model, the size, and the connection type are details that can vary even with products from the same line. When in doubt, check and double-check with the manufacturer!

Puma Air Compressor Replacement Parts List 

Now that you know what to expect, let’s get to the specifics of some common replacement parts. Consider adding the following products to your Puma air compressor parts shopping list:

2E21-025T, Puma Pressure Switch, 95-125 psi

What Does This Part Do?

The pressure switch allows you to control the operation of your Puma air compressor, by relying on air pressure. While the system pressure is below a certain setting, the pressure switch allows power to the motor.

When the pressure switch is broken or malfunctioning, certain things can happen. Either the compressor will stop long before hitting the cut-out pressure, or it will no longer start, or it will randomly go on or off.

Pressure switches come in many different designs, from very basic with no option to adjust, to flexible switches with extra options. For this particular model, 2E21-025T, you have the classic option of a 1-way Puma pressure switch, but also a variation, a 4-way switch version.

Is This Part Hard to Install?

Once you get the appropriate power switch for your Puma air compressor, installing it is not very complicated. The process is also referred to as wiring the power switch. And it involves using some Teflon tape, a crescent wrench, a screwdriver, wire strippers, and, optionally, a ¼-inch pipe nipple.

When getting to work, it’s essential that you first remove the electrical power that feeds the air compressor. Once you remove the cover of the pressure switch, you must disconnect the black and the green wires, and unscrew its safety valve.

Then, you can unscrew the pressure switch altogether, to replace it with the new switch, following the steps from above, in reverse order. 

Puma Air Compressor Pump, 2 Cylinder Single Stage

What Does This Part Do?

A Puma air compressor pump is a mechanism that helps to compress the air into smaller volumes to store it in the tank. With the energy taken from the motor, it draws in atmospheric air and turns it into air at elevated pressure. The compressed air is transferred to the tank through a dedicated discharge tube.

This 2-cylinder single-stage Puma pump features a reciprocating design with only one piston that moves up and down and pressurizes the air in just one stroke. Due to its straightforward design, it allows your Puma air compressor to successfully handle most mid-sized chores.

Is This Part Hard to Install?

To replace your air compressor pump with this model, you’ll have to get to the four bolts that typically hold the air compressor pump to the built-in frame. Once you loosen those, you should remove the transfer tube from the old pump’s head. Then you can completely remove the pump and bring the new model into position.

Putting back the transfer tube to the head of the new pump, you’re ready to screw the bolts, and you can consider your new Puma air compressor pump installed. Proceed to put back all the other components you have removed in order to get to the pump, and power up the unit.

Hold up, are you interested in other topics related to air compressors? If so, these might be something to check out: 

Puma 1" NPT Canister Air Filter

What Does This Part Do?

This part is a dedicated chamber that holds the air filter of your Puma air compressor. It serves the purpose of blocking solid contaminants or liquids from entering the compressor. And so, it contributes to ensuring an optimal functioning of the air compressor, as well as to prolonging its lifespan.

The compressed air may contain anything from dirt particles to traces of oil and water. Sometimes, it may even contain heavy metals, depending on the environment where you work with the air compressor. For these reasons, it is very important to ensure the protection of your Puma air compressor with a quality canister air filter like this one.

Is This Part Hard to Install?

Changing the canister air filter is not a complicated job, though it does require special care, to avoid deteriorating the filter in the process. It is also essential that you have some masking tape at hand, to keep the compressor’s air intake covered while you install the new canister air filter.

With the tape at hand, begin by cleaning around the filter canister, to prevent any contaminants from entering the air intake once you remove the air filter cover. Then, you can remove the cover’s retaining nut, the cover itself, and the air filter. Apply the masking tape.

Bring in the new 1-inch NPT canister air filter, make sure it’s completely clean, and place it instead of the old canister filter, retaking the steps from above in reverse order.

Puma 1/4" Unloading Valve 140-175 psi

What Does This Part Do?

The unloading valve is a small, 1/4-inch valve responsible for eliminating whatever pressure was trapped inside the discharge pipe when the compressor stopped. With the piston compressor’s output being connected to the air receiver through a pipe, there will always be pressurized air trapped inside that pipe when the compressor stops.

This part is typically mounted on the pressure switch, so that it will be actuated the moment the pressure switch will switch off the unit. You can tell it’s time to replace your current Puma 1/4-inch unloading valve when it stays open all the time, or when it no longer opens.

Is This Part Hard to Install?

Installing a new unloading valve is yet another relatively easy task. You’ll need two open-end wrenches to loosen the nut on the air line, on the compression fitting. Then, you will be able to remove the current valve from the fitting, and place the new one in there. Secure its nuts, and that was it!

As a side – but very important! – note, the only thing complicated about installing this part is choosing the right unloader valve for your Puma air compressor! Its physical connection should match not just on the compressed air input, but also on the connection to the pressure switch, where you’ll have to mount it.

Puma 1/2" Check Valve

What Does This Part Do?

The small but essential check valve sits on your Puma air compressor for only one purpose: to control the air flow and make sure it only goes from one side to the other, always in the same direction. An air compressor can have up to 5 check valves.

Depending on the size, type, and design of the unit, such valves are used to maintain certain parts of the compressor well-pressurized and others depressurized. In a nutshell, it is responsible for preventing the air pumped into the air tank from flowing back to the compressor after it shuts down.

Is This Part Hard to Install?

To replace this part of your Puma air compressor, begin by unplugging the unit and draining its air tank. Next, disconnect the pressure switch tube with a wrench, as well as the check valve’s outlet tube. Finally, you can unscrew the check valve, install the new one in its place, and reconnect the outlet tube.

With the new Puma 1/2-inch check valve installed, proceed to reinstall the pressures switch tube. Only then you can plug in the air compressor, to restore its power, and test how it works with the new check valve.

Types of Puma Air Compressor Parts 

Breaking down your Puma air compressor into parts, you’ll notice that the essential ones come in different sizes. From the humble air filter to the hard-working pump, each one plays its role in the process and deserves all your attention: 

Puma Air Compressor Pressure Switch

The pressure switch is nothing more than a pressure-actuated electrical switch. Controlled by air pressure, it is forced into opening or closing a circuit that, in return, sends or blocks the power to the motor.

Puma Air Compressor Pump

The pump is one of your Puma air compressor's essential parts, along with the motor and the air tank. After all, it is the one that compresses the air, using the energy from the motor, and that transfers it into the tank.

Some air compressors have an oil-injected pump, while others have an oil-free pump. Durability-wise, the oil-lubed ones are the better choice.

Puma Air Compressor Air Filter

Your air compressor filter handles the important task of straining the air that should reach the tank. By doing so, it traps whatever solid particles or traces of liquid may have been in the pressurized air.

Having quality air filters on your Puma air compressor will prolong its lifespan and help you enjoy lower maintenance costs in the long run.

Puma Air Compressor Oil

The oil is not an actual part of a Puma air compressor, but it has a significant impact on the compressor's functionality and lifespan. And so, make sure you use the right type of oil and never let it run out of it!

As per the manufacturer's recommendations, you should use a 30 Weight oil, the one dedicated explicitly to compressors, with a non-detergent formulation.


As much as you invest time, energy, and money into choosing the best Puma air compressor, you must do the same for its most essential parts. Due to improper maintenance and use or due to natural wear, the Puma air compressor parts above-discussed are most likely to require a replacement. Luckily, you now know what to look for in your hour of need!