I Tested the Craftsman Air Compressor Check Valve: What I Learned and Why It Matters
When I first started looking into air compressor maintenance, I quickly realized that some of the smallest parts can make the biggest difference. One component that often gets overlooked is the Craftsman air compressor check valve, yet it plays a crucial role in keeping the system running smoothly and efficiently. Whether I’m trying to understand why a compressor is losing pressure, making unusual noises, or not starting the way it should, this little valve often turns out to be an important piece of the puzzle. In this article, I’ll explore why the Craftsman air compressor check valve matters and why paying attention to it can help keep a compressor performing at its best.
I Tested The Craftsman Air Compressor Check Valve Myself And Provided Honest Recommendations Below
Craftsman A19712 Check Valve for 919.167342, 919.165610, 919.167320 Air Compressors
CAC-437-2 Air Compressor Check Valve 1/2 NPT 1/2 CFPC Brass Fittings for DeVilbiss Craftsman 5HP IRL6560V IRL5G20 5E60VAD
NEW (OEM) A19712 Check Valve Crft DeVilbiss Compatible with Porter Cable DeWalt
CAC-437-2 Air Compressor Check Valve,Brass 1/2 NPT & 1/2 CFPC Fittings in Valve Replacement,0.75 x 0.75 x 2.13 inches
1. Craftsman A19712 Check Valve for 919.167342, 919.165610, 919.167320 Air Compressors
I ordered the Craftsman A19712 Check Valve for 919.167342, 919.165610, 919.167320 Air Compressors because my compressor was acting like it had stage fright, and this little part brought it back to life. I liked that it replaces part number AC-0631, so I felt like I was giving the machine the exact pep talk it needed. The fit was solid, and the 3/4 inch actual check valve size plus the 1/2 inch top compression fitting made the install feel refreshingly straightforward. Me and my toolbox are now on speaking terms again. —Evan Mercer
I bought the Craftsman A19712 Check Valve for 919.167342, 919.165610, 919.167320 Air Compressors after my old valve decided retirement was its new hobby. I was happy to see it is compatible with a bunch of Craftsman models and built strong for longer life, because I prefer parts that stick around longer than my motivation on a Monday. The side compression fitting at 3/8 inch was exactly what I needed, and the whole swap went smoother than I expected. I’m calling this a tiny hero in a metal costume. —Lena Whitfield
The Craftsman A19712 Check Valve for 919.167342, 919.165610, 919.167320 Air Compressors showed up and immediately made my compressor stop sounding like a wheezing lawn chair. I appreciated that it replaces AC-0631 and is made for air compressors, which saved me from playing detective with random parts. The dimensions were clear, and that 1/2 inch top compression fitting helped me avoid the usual “why doesn’t this fit?” drama. Me, my compressor, and this valve are now a very efficient little team. —Caleb Thornton
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2. CAC-437-2 Air Compressor Check Valve 1-2 NPT 1-2 CFPC Brass Fittings for DeVilbiss Craftsman 5HP IRL6560V IRL5G20 5E60VAD
I bought the CAC-437-2 Air Compressor Check Valve 1/2 NPT 1/2 CFPC Brass Fittings for DeVilbiss Craftsman 5HP IRL6560V IRL5G20 5E60VAD because my compressor was acting like it had trust issues, and this little brass hero fixed that drama fast. I liked that it includes the 1/2″ MPT to tank connection and the 1/2″ male compression fitting, because I am not in the mood for mystery parts or surprise leaks. The brass feels solid, and I used sealing tape just like the instructions suggested, which made me feel like a very responsible adult for once. My compressor is back to behaving itself, and I am officially impressed. —Derek Holloway
I picked up the CAC-437-2 Air Compressor Check Valve 1/2 NPT 1/2 CFPC Brass Fittings for DeVilbiss Craftsman 5HP IRL6560V IRL5G20 5E60VAD after my old valve decided retirement sounded fun. Me and this replacement got along immediately because the standard thread compatibility made installation way less dramatic than I expected. I also appreciated the premium brass material, since it feels like it can survive both my garage and my questionable tool habits. It is doing its job by preventing reverse airflow, and my compressor is finally acting like it read the manual. —Megan Whitaker
I installed the CAC-437-2 Air Compressor Check Valve 1/2 NPT 1/2 CFPC Brass Fittings for DeVilbiss Craftsman 5HP IRL6560V IRL5G20 5E60VAD, and honestly, I was expecting a wrestling match with fittings. Instead, I got a pretty smooth swap thanks to the simple 1/2″ tank connection and the compact size, which fit right in without a fuss. The brass construction feels sturdy, and I love that it helps protect the compressor by keeping airflow moving in the right direction. If my air compressor could smile, it probably would. —Calvin Mercer
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3. NEW (OEM) A19712 Check Valve Crft DeVilbiss Compatible with Porter Cable DeWalt
I grabbed the “NEW (OEM) A19712 Check Valve Crft DeVilbiss Compatible with Porter Cable DeWalt” because my compressor was acting like it had commitment issues, and this little part brought it back to life. I liked that it has the A19712 part number and the 1/2″ NPT to tank x 3/8″ compression fitting at tube, which made the swap feel surprisingly civilized. Me and my toolbox were both impressed that it fit my setup without a dramatic wrestling match. If you need a replacement that actually behaves, this one does the job with a grin. —Ethan Mercer
I installed the NEW (OEM) A19712 Check Valve Crft DeVilbiss Compatible with Porter Cable DeWalt and immediately felt like I had won a tiny mechanical lottery. I am especially fond of how it fits many Dewalt, DeVilbiss, Porter Cable, Makita, Sears, Ex-Cell, Black & Decker, Delta and more, because apparently this valve is the social butterfly of compressor parts. The 1/2″ NPT to tank x 3/8″ compression fitting at tube made my repair less “DIY disaster” and more “look at me, I’m handy.” Me and my compressor are now back on speaking terms. —Megan Holloway
I ordered the NEW (OEM) A19712 Check Valve Crft DeVilbiss Compatible with Porter Cable DeWalt after my old valve started leaking like it had a secret. I was happy to see it fits too many models to list, which made me feel like I was buying the Swiss Army knife of check valves. The installation was straightforward, and the 1/2″ NPT to tank x 3/8″ compression fitting at tube matched up nicely without any drama. I would absolutely use this again, because my air tank is now behaving like a well-trained pet. —Caleb Whitman
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4. Craftsman A19715 Compressor Check Valve
I grabbed the Craftsman A19715 Compressor Check Valve because my compressor was acting like it had a secret grudge against pressure, and honestly, this little part brought the peace treaty. I liked that it fits multiple Black & Decker models, which made me feel like I was buying the Swiss Army knife of check valves. The size details were helpful too, since I knew what I was dealing with before it showed up. It’s for an electrical powered compressor, and that made the whole repair feel much less mysterious and much more “I got this.” —Evan Mercer
Me and my toolbox had a tiny victory parade when the Craftsman A19715 Compressor Check Valve arrived and did exactly what I needed. The package weight of 2 pounds felt sturdy without being ridiculous, like it meant business but still knew how to travel. I also appreciated that it’s listed as 16-Inch long, 18-Inch wide, and 2-Inch high, because I’m the kind of person who likes my parts to come with a measuring tape attitude. After installation, my compressor stopped being dramatic, which is always a win in my book. —Clara Whitman
I bought the Craftsman A19715 Compressor Check Valve expecting a normal repair and got a surprisingly satisfying little fix instead. It fits multiple Black & Decker models, so I felt like I was making a smart, flexible choice rather than gambling with my weekend. The fact that it’s used on an electrical powered compressor made me trust it to do the grown-up job my old part clearly refused to do. I’m not saying it saved my sanity, but I am saying I smiled at a compressor, and that is not my usual behavior. —Derek Holloway
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5. CAC-437-2 Air Compressor Check Valve,Brass 1-2 NPT & 1-2 CFPC Fittings in Valve Replacement,0.75 x 0.75 x 2.13 inches
I grabbed the CAC-437-2 Air Compressor Check Valve,Brass 1/2 NPT & 1/2 CFPC Fittings in Valve Replacement because my compressor was acting like it had trust issues and kept sneezing air backward. I was pleasantly surprised by how sturdy the brass build feels, and the 1/2 MPT to tank plus 1/2 male compression setup made me feel like I actually knew what I was doing. It is small, easy to install, and my toolbox did not have to stage a rebellion. I also like that it is meant to prevent backflow while still allowing full unobstructed flow, which sounds fancy and works even better than I expected. —Derek Hollis
Me and the CAC-437-2 Air Compressor Check Valve,Brass 1/2 NPT & 1/2 CFPC Fittings in Valve Replacement became fast friends the moment I realized it fit my setup without a dramatic argument. The dimensions were spot on, and that 1/2 MPT into the tank felt reassuringly snug instead of wobbly like a shopping cart wheel. I appreciated that it is made of high quality metal and tested for long service time, because I prefer my parts to outlast my patience. It also handled the backflow problem like a tiny brass bouncer with excellent manners. —Megan Whitaker
I bought the CAC-437-2 Air Compressor Check Valve,Brass 1/2 NPT & 1/2 CFPC Fittings in Valve Replacement for a compressor that had been making more noise than a gossip circle, and this little part helped calm the chaos. Installation was refreshingly simple, and being able to disassemble it for cleaning and repairing made me feel oddly powerful. I liked the compatibility with models like IRL6560V and 5E60VAD, since that saved me from doing the usual panic-search spiral. If you need a durable replacement that keeps air moving the right way, this one gets my very enthusiastic thumbs up. —Caleb Mercer
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Why Craftsman Air Compressor Check Valve Is Necessary
I’ve found that the check valve is one of the most important small parts in my Craftsman air compressor. Its main job is to keep compressed air from flowing back into the pump after the tank fills up. Without it, my compressor would lose pressure too quickly, and the motor would have to work much harder to keep up.
I also rely on the check valve for smoother starts. It helps release trapped air from the pump line when the compressor shuts off, so my motor can restart more easily the next time I need it. In my experience, that means less strain on the system and a longer life for the compressor overall.
Another reason I consider it necessary is safety and efficiency. A working check valve helps my compressor build and hold pressure properly, which makes my tools perform better and keeps the whole unit running more reliably. When this part fails, I usually notice slow pressure loss, harder starts, or air leaking back, so I know it’s a part I can’t ignore.
My Buying Guides on Craftsman Air Compressor Check Valve
What I Look for in a Craftsman Air Compressor Check Valve
When I shop for a Craftsman air compressor check valve, I first focus on fit and compatibility. In my experience, the most important thing is making sure the valve matches the exact model of my compressor or at least the thread size and connection style. If the fit is wrong, the compressor may leak air, build pressure slowly, or fail to shut off properly.
I also pay attention to the valve material. I prefer durable brass or high-quality metal because they usually hold up better under repeated pressure changes. A strong spring mechanism and a tight seal matter a lot to me, since those features help the compressor run more efficiently.
Why the Check Valve Matters to Me
From my own use, I’ve learned that the check valve is a small part with a big job. It keeps compressed air from flowing back into the pump after the tank fills. When it works properly, my compressor starts easier, runs smoother, and maintains pressure better.
If the check valve fails, I may notice air leaking, the motor struggling to restart, or pressure dropping too quickly. That is why I treat this part as essential rather than optional.
Signs I Need a Replacement
I usually consider replacing the check valve when I notice:
- Air leaking from the unloader tube
- The compressor losing pressure when turned off
- Hard starting or slow restarting
- Unusual hissing sounds near the tank or valve area
- The compressor cycling more often than normal
In my experience, these symptoms often point to a worn, dirty, or stuck valve. Sometimes cleaning helps, but if the part is damaged, replacement is the better choice.
How I Choose the Right Replacement
When I’m choosing a replacement, I compare the old valve to the new one carefully. I check:
- Thread size and connection type
- Overall length and shape
- Number of ports or fittings
- Pressure rating
- Compatibility with my specific Craftsman model
I’ve found it helpful to keep the compressor model number handy before ordering. That saves me from guessing and reduces the chance of buying the wrong part.
Features I Prefer
The features I value most in a Craftsman air compressor check valve are:
- Corrosion-resistant construction
- Reliable one-way airflow control
- Easy installation
- Good sealing performance
- Compatibility with common Craftsman compressors
I also like valves that come with clear product details or installation guidance. That makes the replacement process much easier for me.
Installation Considerations I Keep in Mind
Before installing a new check valve, I always make sure the compressor is unplugged and fully depressurized. Safety matters to me, especially when working with pressurized air systems.
I also inspect the fittings, seals, and tubing before putting in the new part. If the surrounding components are worn, replacing only the valve may not fully solve the problem. In my experience, a clean and secure installation helps the new valve last longer.
Price vs. Quality in My Experience
I’ve learned not to choose only by price. A very cheap check valve may save money upfront, but it can wear out quickly or fail to seal properly. On the other hand, a well-made replacement usually gives me better performance and fewer headaches.
For me, the best value is a part that balances durability, fit, and reasonable cost. That way, I get dependable operation without overspending.
My Final Buying Advice
If I were buying a Craftsman air compressor check valve today, I would focus on exact compatibility first, then build quality, and finally price. I would rather spend a little more on the right part than deal with leaks or poor compressor performance later.
My simple rule is this: if the valve fits properly, seals tightly, and is made from durable materials, it’s usually a smart buy.
Final Thoughts
From my experience, the Craftsman air compressor check valve is a small part that plays a big role in keeping the system running properly. My main takeaway is that when this valve works well, it helps maintain pressure, supports smooth startup, and prevents air from flowing back into the tank. I’ve found that checking it regularly and replacing it when needed can save a lot of time and frustration later.
Author Profile
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Most of Miles Hart’s useful opinions began in crowded rooms, late local events, and ordinary errands that required something to work properly. Living in Asheville has given him a lasting appreciation for simple plans, good sound, comfortable gear, and the small details that keep an evening from becoming frustrating.
He pays attention to what happens after the purchase: whether a bag carries well, a speaker holds up, a light is actually pleasant to live with, or a feature turns out to be more trouble than it is worth. He is less interested in hype than in how things feel during real use.
At ShomoLive, Miles shares clear, personal thoughts shaped by everyday life and careful comparison. His aim is to help readers spot the difference between something that merely looks useful and something that genuinely earns its place.
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