Easy
15-30 minutes
This is an OEM Craftsman replacement part. The check valve is to be used to air compressors. The valve allows air to pass from the cylinder into the tank while preventing the air in the tank from returning to the cylinder. The check valve is made from high-quality metal. To install, bleed the air out of the system and disconnect all the lines from the check valve. A wrench is necessary for the repair. This part is sold individually.
Valve, Chck 031-0094
OEM part for: Craftsman
Part Number: 031-0094
$19.80
In Stock
Ships within 1 business day 
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Compatibility
This Valve, Chck will fit the following 2 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Compressor Parts
Customer Part Reviews ?
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Great part ,same as the original
The check value was just like the original. It fit prefect. I just hope it last longer than the original one.
Guest -
March 29, 2021
Verified Purchase
worked great
good fit
Linvel -
March 17, 2021
Verified Purchase
easy repair, part worked perfectly
The part arrived quickly as advertised and was an exact replacement part that fixed the issue. Thanks
Guest -
March 19, 2020
Verified Purchase
good part
i got this and the piston both were well package except the gaskets were bent but flateen out and worked.
Guest -
March 6, 2020
Verified Purchase
EXACT REPLACEMENT
PART RECEIVED AS EXPECTED. AFTER FURTHER EXAMINATION I FOUND THE PROBLEM AND THE PART WAS NOT NEEDED. RETURN PROCESS WAS EXCELLENT.
WILLIAM -
October 7, 2019
Verified Purchase
Check valve for air compressor
The product is the mirror image of the original. I had to replace one of the lines with a longer one.
Guest -
July 1, 2019
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
My compressor was leaking air and the motor was cycling way too often
James - April 6, 2022
Tool Type
Compressor
Difficulty
Medium
Time
More than 2 hours
Tools Used
Wrench Set
Parts Used
I had to replace pretty much all the lines connected to the air tank, all of which I ordered from ERepalement. The final item was the check valve which seems to solve the problem. It was great being able to order all the necessary parts from EReplacment to repair my compressor. Thank you!
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Bought compressor used and discovered unwise modifications to bypass a defective part.
Wayne - October 11, 2021
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set, Utility knife
Repaired unit to original condition.
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My old check valve had a hole in it.
RICKY - January 20, 2021
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set, No other tools used
Parts Used
On my compresser I unscrewed the inlet line from the pump. Then unscrewed the line to the gauges. Unscrewed the check valve on the front of the air tank. I used a 17 mm wrench to screw the new one on. It was really easy to do.
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check valve was cracked and leaked air
WILLIAM - August 3, 2019
Tool Type
Compressor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, Adjustable Wrench
Parts Used
removed the cracked valve
put teflon tape on threads
screw new valve on
checked for leaks
put teflon tape on threads
screw new valve on
checked for leaks
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Compressor was leaking air from the unloader valve.
TREVOR - July 5, 2018
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Adjustable Wrench
Parts Used
I made this repair more complicated than it probable needed to be. Apparently air coming out of the unloader valve when the compressor is pressuring up isn't usually a sign of a faulty unloader valve. It's usually an indication of a bad check valve. It's an old compressor so I ended up ordering a check valve and complete pressure switch. Pretty straight forward repair.
1. Remove all lines attached to the check valve and pressure switch.
2. Remove check valve and replace with new.
3. Remove the plastic housing from the pressure switch and unwire it. Don't break any wire terminals like I did. Remove gauge and fittings and set aside for use on new switch. Unscrew stripped pressure switch.
4. Install fittings but not the gauge on new pressure switch. Thread pressure switch tightly into fitting coming out of the tank.
5. Reconnect all lines to the new check valve and new pressure switch. Push the end of the aluminum unloader tube into the unloader valve tightly then thread the other end into the check valve.
6. Install gauge into new pressure switch.
7. Reconnect wires to the appropriate terminals in the new pressure switch. Replace black plastic housing.
8. Check to make sure it works and nothing leaks.
1. Remove all lines attached to the check valve and pressure switch.
2. Remove check valve and replace with new.
3. Remove the plastic housing from the pressure switch and unwire it. Don't break any wire terminals like I did. Remove gauge and fittings and set aside for use on new switch. Unscrew stripped pressure switch.
4. Install fittings but not the gauge on new pressure switch. Thread pressure switch tightly into fitting coming out of the tank.
5. Reconnect all lines to the new check valve and new pressure switch. Push the end of the aluminum unloader tube into the unloader valve tightly then thread the other end into the check valve.
6. Install gauge into new pressure switch.
7. Reconnect wires to the appropriate terminals in the new pressure switch. Replace black plastic housing.
8. Check to make sure it works and nothing leaks.
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Thanks for voting and helping fellow customers!
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
