The 12 Best Harbor Freight Air Compressor Unloader Valves (2022 reviews)

harbor freight air compressor unloader valves
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If you are looking for collection of best harbor freight air compressor unloader valves, Your search ends here.

Our review process:

Our Top Picks:

Best Overall:
Buy: Hromee Harbor Freight Air Compressor Unloader Valve
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Best With Teflon Tape:
Buy: Lefoo Harbor Freight Air Compressor Unloader Valve
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Best With Great Service:
Buy: Generic Harbor Freight Air Compressor Unloader Valve
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Best For Good Seal:
Buy: Secbolt Harbor Freight Air Compressor Unloader Valve
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Best For Corrosion Resistance:
Buy: Chiloskit Harbor Freight Air Compressor Unloader Valve
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Best For Multiple Applications:
Buy: Hhyoosoo Harbor Freight Air Compressor Unloader Valve
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Best For Good Quality Material:
Buy: Cdi/Conrader/Steuby Harbor Freight Air Compressor Unloader Valve
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Best For Easy Install:
Buy: Check Valve Harbor Freight Air Compressor Unloader Valve
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Best With Cable:
Buy: Conrader Harbor Freight Air Compressor Unloader Valve
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Best For High Performance:
Buy: Ftvogue Harbor Freight Air Compressor Unloader Valve
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Best For Truck:
Buy: Industrial Equipment Expert Harbor Freight Air Compressor Unloader Valve
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Best For Good Replacement:
Buy: Colibrox Harbor Freight Air Compressor Unloader Valve
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Best Overall: Hromee Harbor Freight Air Compressor Unloader Valve

Hromee Harbor Freight Air Compressor Unloader Valve
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The Hromee harbor freight air compressor unloader valve is the epitome of what a great valve should be. The Hromee Harbor Freight Air Compressor Unloader Valve has a professional engineering team that designs and collocates with various automotive tools including tire repair kit, plugs, air hose etc. Message us through amazon's direct messaging service before ordering if you can not make sure if it fits your compressor. The hromee check valve kit is used to prevent backflow in a piping system. is known as a check valve.

The valve is brand new, it provides great value and has a good design. Also, this is used to keep air volume and pressure from escaping back into compressor heads while not operating. Above all, the hromee harbor freight air compressor unloader valve is perfect for exact replacement, It works perfectly and has a great design.

Almost all buyers opine that the valve is necessary to shift the tubing collar 1/4 to 3/8 inch. And, they strongly agree that the valve is not in the picture, so you can't really complain about it. And, they also found that the valve was what it needed to get back to work. Overall, many buyers have used the valve for more than a few months without any complaints, and it shows no sign of giving up.

Top Customer Quotes:
  • Manufacturer says: We also owned a factory for over 10 years.
  • The check valve prevents air from going into the compressor head from the tank.
  • Consult your owner’s manual to find if this check valve fits your air compressor.
  • This works perfectly and it is worth the money.

Best With Teflon Tape: Lefoo Harbor Freight Air Compressor Unloader Valve

Lefoo Harbor Freight Air Compressor Unloader Valve
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If you want nothing but a valve that is suitable, this Lefoo harbor freight air compressor unloader valve is certainly a wise investment. The Lefoo harbor freight air compressor unloader valve is very happy, it works perfectly and has a special design. The pressure switch is factory set to 95. Moreover, the valve works fine, it works better and has a solid design.

Above all, the Lefoo harbor freight air compressor unloader valve is designed for a great price, It is perfect for quick disconnect and has a nice design.

Almost all buyers opine that the valve is pretty much an exact match. In addition, they say that the valve is a two pole motor switch and starts a motor using tank pressure. Moreover, they also found that this switch would work on a harbor freight compressor with some modifications. In conclusion, for almost all customers, it was what they were looking for.

Top Customer Quotes:
  • This is bang-on without any adjustment.
  • The switch has the ability to connect two incoming contacts with two outgoing contacts.
  • The switch is rated 20 amps 120v, 12.6 amps 240v.
  • This is a universal fit type unit.

Best With Great Service: Generic Harbor Freight Air Compressor Unloader Valve

Generic Harbor Freight Air Compressor Unloader Valve
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Compared with other valves in this category, the Generic Harbor Freight Air Compressor Unloader Valve has a convenient design. The generic harbor freight air compressor unloader valve can help to save electricity energy from the air compressor. Kind of air compressor pressure switch control valve 90. Further, this is very happy, it is best for fast service and has an excellent design.

Finally, the generic harbor freight air compressor unloader valve works well so far, provides great value and it provides for easy replacement.

Most buyers found that the valve fits like the original 10yro+/- small compressor switch only a little taller. Furthermore, a few also found that the valve is a perfect solution for an aging air compressor. And, they strongly agree that the valve is perfect with bostitch cap60p-of.

Top Customer Quotes:
  • This is a perfect replacement for the pressure switch on the harbor freight compressor 47065.
  • It can help to save electricity from the air compressor.
  • Easy to install and convenient to use.
  • This is easy to install, operates at a pre-set shut of of 120 p.s.i.

Best For Good Seal: Secbolt Harbor Freight Air Compressor Unloader Valve

Secbolt Harbor Freight Air Compressor Unloader Valve
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Secbolt offers a variety of valves for personal choice and yet maintains quality in all the variants. The second harbor freight air compressor unloader valve is installed easily, It is easy to use and has a good design. Make sure this fits by entering your model number. And, it is easy to assemble, It very easy and has a simple design.

The valve comes in with a direct fit and it works perfectly. In addition, it makes for a nice, inexpensive solution, allows for better flow control, it has metal contacts and is easy to design. Finally, the Secbolt Harbor Freight Air Compressor Unloader Valve is designed for exact replacement, is very happy, It allows for very good quality and has a nice design.

Most buyers quickly discover that the valve is decent to install, be sure to follow the instructions. And, they also found that the valve is dropped on a raised surface. In addition, they strongly agree that the part will function but it will limit the maximum pressure to 125 psi. With no doubts, this valve passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • Heavy duty lefoo air compressor pressure switch + valve gauges regulator.
  • This worked perfectly and has a solid design.
  • This is located under pressure switch box.
  • Thick material makes a solid - quality manifold.

Best For Corrosion Resistance: Chiloskit Harbor Freight Air Compressor Unloader Valve

Chiloskit Harbor Freight Air Compressor Unloader Valve
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The Chiloskit Harbor Freight Air Compressor Unloader Valve is satisfactory and appropriate and fits well with your daily use. The chiloskit harbor freight air compressor unloader valve comes in with direct fit, is designed for air tools and it is built with great quality. The Manufacturer says: We guarantee your complete satisfaction with all of our products. In addition, it is designed for good fit and it can be trusted for good quality.

The valve has brass construction, is built for good performance and it works like a champ. Above all, the chiloskit harbor freight air compressor unloader valve is best for fast service and it allows for very good quality.

Almost all buyers quickly discovered that the valve is easy to install and works.

Why We Like This:
  • An Excellent replacement for the old or broken check valve of your air compressor.
  • It has compressive strength, corrosion resistance, high performance and high reliability.
  • This has male thread size and it has male thread.

Best For Multiple Applications: Hhyoosoo Harbor Freight Air Compressor Unloader Valve

Hhyoosoo Harbor Freight Air Compressor Unloader Valve
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For a low asking price, Hhyoosoo harbor freightair compressorunloader valve has managed to overwhelm their customers by packing as many features as they could. The Hhyoosoo Harbor Freight Air Compressor Unloader Valve makes for a great buy, allows for multiple applications and it works fine. Make sure this fits by entering your model number. In addition, it is very easy and it works perfectly.

The valve worked perfectly and it is good for gold tone. Also, the valve is a great switch for miniative air compressor. It can help to save electricity energy on the air compressor. easy to install and convenient to use. There is a red on/off switch knob auto control, auto load/unload four female air inlet ports with approx. Lastly, the hhyoosoo harborfreight aircompressor unloader valve is non-original parts, replacement for oem.

Almost all customers found that the valve could be 120 or 240 volt.s. Moreover, a few say that the valve is easy to install but the pressure relief valve leaked, Come to find out, it is adjustable. To sum up, buyers found this to be one of the best valves for daily purposes.

Top Customer Quotes:
  • This works with 120v even though it is not specifically listed in the description.
  • About pressure relief valve: material:plastic+metal;thread size : 1/4"pt,thread diameter : 12.7mm.
  • This comes with teflon tape, is easy to replace and it is inexpensive.
  • This is a perfect direct replacement for a harbor freight compressor switch.

Best For Good Quality Material: Cdi/Conrader/Steuby Harbor Freight Air Compressor Unloader Valve

Cdi/Conrader/Steuby Harbor Freight Air Compressor Unloader Valve
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The Cdi/Conrader/Steuby Harbor Freight Air Compressor Unloader Valve is the most convenient valve on the market today. The cdi/conrader/steuby harbor freight air compressor unloadervalve worked perfectly and it is made of quality material. This port is used for an un-loader line, Some compressors do not have this. If yours do not, you should just plug this port. in. Further, it is made in the United States by Conrader Co.

The valve holds pressure and it fits perfectly. Most importantly, the cdi/conrader/steuby harbor freight air compressor unloader valve is used to directly screw into the air tank and keep pressure from leaving the tank and put pressure against the compressor pump once the compressor is shut off.

Almost all customers found that the valve was a perfect fit and an easy fix for an old compressor. Further, they strongly agree that the valve can be used on a Craftsman 919 air compressor. Moreover, a few also found that the original valve lasted under heavy use for over fifteen years.

Top Customer Quotes:
  • This is brand new and it is given 4 stars.
  • This works as needed and it works well for good quality.
  • This is good for another 20 years.
  • This sealed on check and it works perfectly.

Best For Easy Install: Check Valve Harbor Freight Air Compressor Unloader Valve

Check Valve Harbor Freight Air Compressor Unloader Valve
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Compared with other valves in this category, the Check Valve Harbor Freight Air Compressor Unloader Valve has a convenient design. The check valve harbor freight air compressor unloader valve makes for a great buy and it is great for flow rate. Make sure this fits by entering your model number. The compressed air passes the check valve, there is no way it can go back again.

The valve has only one function and it is an important part of any air compressor. Moreover, it works perfectly and it is great for good quality. Finally, the check valve harbor freight air compressor unloader valve is great with great quality, works fine and it is best with max pressure.

Most buyers found that the valve was easy to install, the quality exceeded requirements. Moreover, a few also found that the valve is good as a higher priced valve.

Why We Like This:
  • 450 psi max pressure 400 deg f. max temperature.
  • Made in the USA. Please note. 3/4" NPT measures 1.050 on a tape measure.
  • The air compressor check valve can be found on almost any compressor out there.

Best With Cable: Conrader Harbor Freight Air Compressor Unloader Valve

Conrader Harbor Freight Air Compressor Unloader Valve
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We would, of course, be remiss if we didn't mention Conrader Harbor Freight Air Compressor Unloader Valve for regular usage. The conrader harbor freight air compressor unloader valve works perfectly and it is good for good quality. The Manufacturer says: We do combine shipping on all of our products. And, the valve makes for a great company and it is very happy.

Lastly, the conrader harborfreight aircompressor unloader valve has an unload setting and a load setting.

One customer says - "They are cheap enough, buy one and see if you can make it work. ". Almost all buyers found that the valve has been approx 2 weeks so far and the valve works very smoothly and is worth the buy.

Why We Like This:
  • 1/4" fnpt inlet & 1/8" fnpt discharge outlet.
  • 250 psi max operating pressure, 15f to 350f temp rating, pilot valve.
  • 30-40 psi adjustable up or down.
  • Pilot unloadervalve for air compressors 1/4" male npt inlet - 1/8" outlet.

Best For High Performance: Ftvogue Harbor Freight Air Compressor Unloader Valve

Ftvogue Harbor Freight Air Compressor Unloader Valve
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If you often find yourself scrambling for an appropriate and satisfactory valve, Ftvogue Harbor Freight Air Compressor Unloader Valve is your solution. The ftvogue harbor freightair compressorunloader valve is convenient to install, it has male thread and has an excellent design. The Manufacturer says: Our store is committed to providing high quality household and industrial products to global buyers. Further, the valve has a designed for easy internal cleaning, it is easier and healthier to use, and it is durable and long - lasting. Finally, the ftvogue harbor freight air compressor unloader valve is easy to install, does not require any tools.

Almost all customers opine that the valve is actually better than the original one.

Why We Like This:
  • Compressive strength, corrosion resistance, high performance and high reliability.
  • Lot of satisfied buyers.

Best For Truck: Industrial Equipment Expert Harbor Freight Air Compressor Unloader Valve

Industrial Equipment Expert Harbor Freight Air Compressor Unloader Valve
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The Industrial Equipment Expert Harbor Freight Air Compressor Unloader Valve is satisfactory and appropriate and fits well with your daily use. The industrial equipment expert harbor freight air compressor unloader valve is a 1/8" port on the side for a complete control valve or cable. Make sure this fits by entering your model number. And, it has a toggle lever on the top that can be put in the upward position for load free engine start or complete control.

The valve has a 1/2" female npt air inlet and a 1/2" male npt air outlet. Lastly, the industrial equipment expert harbor freight air compressor unloader valve is used to run an air compressor at a constant speed.

"Product seems to be good. " - says, one customer. To sum up, the tone of buyers is very positive and we believe that the valve suits the purpose.

Why We Like This:
  • 1/2" fpt top inlet x 1/2" male pipe thread outlet.
  • Unloader valve (continuous run unloader) for gas & electric powered air compressors.
  • 140-175 factory setting. Pressure can be adjusted to 30-40 psi up or down.
  • These are used on both gas engines and electric motor compressors.

Best For Good Replacement: Colibrox Harbor Freight Air Compressor Unloader Valve

Colibrox Harbor Freight Air Compressor Unloader Valve
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The Colibrox harbor freight air compressor unloader valve is capable of outshining several other valves featured in this list in overall features in its price range. Gas air compressor pilot unloader check valve combo 100. And, the valve worked perfectly and it is made for good replacement. In short, with a 4.4 rating and more than 408 buyers, the Colibrox harbor freight air compressor unloader valve stands as the best choice.

Almost all customers quickly discovered that the valve was a copy of a Honda engine, so it would work. Further, they strongly agree that the valve has a couple of listings based on throttle cable lengths. In short, the tone of buyers is very positive and we believe that the valve suits the purpose.

Top Customer Quotes:
  • It is easy to connect to an engine.
  • One of the newcomers and featured product.