Easy
15-30 minutes
This switch is an OEM direct from Craftsman for air compressors. This switch turns the pump off and on to control the tank air pressure. It is recommended to review your models diagram to verify the parts compatibility. This part is made of plastic and metal components. This switch is sold individually.
Prs Switch 034-0228
OEM part for: Craftsman
Part Number: 034-0228
$87.83
In Stock
Ships within 1 business day 
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Compatibility
This Prs Switch will fit the following 5 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 5 of 5 matching models.
Craftsman
5 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Craftsman
This item works with the following types of products:
- Compressor
Customer Part Reviews ?
Average Rating (out of 5):
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The right part!
This was the perfect replacement part for my older Craftsman 150 PSI compressor.
Actually got to talk to someone who knew his stuff. Verified the part would work and shipped out quickly!
Guest -
April 4, 2024
Verified Purchase
Excellent service.
My order came early. It was the correct part. Glad to find there is one company left out there that knows how to process and ship an order correctly. Thank you.
Guest -
January 11, 2023
Verified Purchase
works great
easy to install
Guest -
March 18, 2022
Verified Purchase
Easy repair and quick delivery
Perfect match
Guest -
February 7, 2022
Verified Purchase
easy repair part perfect
good part, you need to save black plastic fitting that attaches to pipe that goes to tank
Guest -
July 14, 2021
Verified Purchase
Great service and parts availability
E-Replacement Parts has always provided great service and the parts I need. In the years I have purchased from them, they have always had the parts I couldn't find anywhere else. If you need it they will have it. The pressure switch I purchased is not available from Sears anymore and they had it.
Ignacio -
June 28, 2021
Verified Purchase
Leaking air compressor
Exact part, fast shipping. I’m happy!!!
Guest -
April 21, 2021
Verified Purchase
Worked great
fit justlike the old one
tina -
August 23, 2020
Verified Purchase
You
..
Guest -
June 23, 2020
Verified Purchase
easy repair, arrived quickly
exact replacement, GREAT PRICE. eReplacementParts is my to go place!
Michael -
April 10, 2020
Verified Purchase
Questions & Answers ?
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Does this fit my product?Questions & Answers for Prs Switch
My compressor after I turn it on starts but blows circut breaker 20 amp
David
for model number 919.165010
asked on 2023-03-20
Hello David, Thank you for your inquiry. There are two reasons an air compressor can trip a breaker,
electrical and mechanical. Several factors can cause your compressor to pull too much power, so first make sure that that amp rating on the compressor does not exceed the amperage the outlet can handle. Check the safety valve, piston kit with o-rings, the fan and filter kit, and check valve for any visible damage. Good luck with your repair.
eReplacementParts Team March 20, 2023
Looking for the compressor itself. Model 921.16474s. Do you know where to get one. Mine is seized.
Ben
asked on 2022-02-08
Hello Ben, Thank you for writing. We suggest contacting Craftsman, as we are just an online parts provider. We do not sell the full unit. We hope this helps!
eReplacementParts Team February 08, 2022
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.
Compressor was leaking air from the unloader valve.
TREVOR - July 5, 2018
👍 6 of 7 people found this instruction helpful
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Adjustable Wrench
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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compressor air pressure switch electrical contacts burnt
Michael - March 5, 2019
👍 3 of 4 people found this instruction helpful
Tool Type
Compressor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Adjustable Wrench
Parts Used
1. removed electrical power.
2. released residual air under pressure from cylinder and selected all tools and materials needed to complete the job.
3. Uncapped pressure switch box cover and marked wires for reinstallation (took pic for backup).
4. marked orientation of lines installed (backed up with pic)
5. had to remove instrument panel for line/hose removal clearance.
6. Once all lines/hoses removed, cleaned up end fittings on pressure switch and hoses
7. Removed pressure switch from air tank with short threaded tube still installed on pressure switch
8. Cleaned air tank to pressure switch short tube (internal corrosion) applied tape to threads
at tank end of installation.
9 Applied silicone tape to threaded fittings where necessary to prevent air leaks.
10. Transferred air line fittings from old pressure switch to new switch.
11. Applied lubricant to threads of fittings and hoses prior to installation.
12. Installed pressure switch, air lines/hoses and last the electrical wires for the power source, motor connections and pressure switch cover.
13. Plug into power source, checked tank pressure buildup and verified cutoff air pressure
value and checked for air leakage.
2. released residual air under pressure from cylinder and selected all tools and materials needed to complete the job.
3. Uncapped pressure switch box cover and marked wires for reinstallation (took pic for backup).
4. marked orientation of lines installed (backed up with pic)
5. had to remove instrument panel for line/hose removal clearance.
6. Once all lines/hoses removed, cleaned up end fittings on pressure switch and hoses
7. Removed pressure switch from air tank with short threaded tube still installed on pressure switch
8. Cleaned air tank to pressure switch short tube (internal corrosion) applied tape to threads
at tank end of installation.
9 Applied silicone tape to threaded fittings where necessary to prevent air leaks.
10. Transferred air line fittings from old pressure switch to new switch.
11. Applied lubricant to threads of fittings and hoses prior to installation.
12. Installed pressure switch, air lines/hoses and last the electrical wires for the power source, motor connections and pressure switch cover.
13. Plug into power source, checked tank pressure buildup and verified cutoff air pressure
value and checked for air leakage.
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Pressure switch went bad
Douglas - June 29, 2018
👍 2 of 2 people found this instruction helpful
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Took several pictures of the wiring before disconnecting , then installed new switch.
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compressor runs builds up air when max pressure is reached compressor vale releases airthen tries to restart and trips cercut breaker
paul - June 25, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Wrench Set, Adjustable Wrench, na
Parts Used
replaced parts
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Old switch went bad
C&P - April 7, 2022
Tool Type
Compressor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers
Parts Used
Removed and replaced the switch
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leaking air
Darrell - March 20, 2022
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Adjustable Wrench
Parts Used
removed and replaced pressure switch
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The regulator switch finally gave up the ghost.
Eric - March 8, 2022
Tool Type
Compressor
Difficulty
Medium
Time
1-2 hours
Tools Used
Pliers, Socket set, Wrench Set, Adjustable Wrench
Parts Used
I removed the old switch, cleaned all the components and thread taped all the connections, and reconnected the new switch.
(My Sears compressor has a proprietary pressure cut-off attachment, so I couldn't use a knock-off brand. In the end, although 4 times as expensive, the repair came out just fine.)
(My Sears compressor has a proprietary pressure cut-off attachment, so I couldn't use a knock-off brand. In the end, although 4 times as expensive, the repair came out just fine.)
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Pressure switch had failed and needed replacement.
Christopher - November 19, 2020
Tool Type
Compressor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Adjustable Wrench
Parts Used
Ensured the power cord was unpluged. Removed the old pressure switch to include electical and air line return. Removed the pressure guage and air release. Installed the items on the new switch, connected the electrical lines, secured the switch cover and tested. All worked fine.
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Power on-off switch wad broken
Gary - September 15, 2019
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Nutdriver
Parts Used
1.Unplug from electric outlet. 2.Bleed-off air pressure from tank. 3.Remove cover shroud. 4.Remove (Label wire locations) electric wires. 5. Remove safety valve. 6. Disconnect air lines. 7. Reverse all steps for re-assembly.
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
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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.
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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.
