Description
Review this item in the context of the repair, installation access, nearby parts, and the result the completed job is intended to achieve.
Hadley Horns H13940S Pressure Switch
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Repair scenarios, installation, companion parts, and use outcomes
Buying guidance
Quick decision
Review this accessories & compressors in the context of the repair and the surrounding components.
Repair scenario
- Identify the symptom and confirm that this is the component required by the repair.
- Inspect nearby connectors, fasteners, and mating surfaces before installation.
Installation notes
- Use the listing instructions when present and follow the vehicle service procedure.
- Professional installation may be appropriate when the repair requires special tools or calibration.
Companion parts
- Inspect nearby fasteners, connectors, seals, fluids, and wear items before starting the repair.
- Use the service procedure and the visible package contents to identify any additional parts or tools required.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
4.1 / 5
60 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Steve Friend –
I found the existing pressure switch had failed and that it was leaking behind the copper nut. Replacement of the switch solved the issue
Sea Men –
Not sure why I gave it 2 stars vs 1. I guess cause it worked for awhile. I had a leak n my tank so I pulled the tank, welded it, and reinstalled. Fire up truck n compressor wont shut down. Went to 160psi b4 I pulled the plug. It wasn’t but 3 months old and used just a couple weeks. I pulled the pressure switch off, hooked it to an ohm meter, and it didn’t switch off till 180psi. It’s rated 110-135. Whatever. I’m done with their $35 Hadley Switches. Gonna try $16.88 V pressure switch. What’s to lose by trying, other then 1/2 the cost of Hadley…
Dutch Boy –
Worked perfectly. The last one died after one year, most likely because I plumbed it with the electric connectors facing down, which would allow condensation to settle into the switch. I reversed the direction this time, and am hopeful of a longer service period.
Raymond L. Rudiger –
Works great. Shuts down my compressor as needed.
Bob –
Pressure switch was needed. Also needed a new Hadley Compressor which I bought. Finally got it working like new again. I really do like the Hadley products. They are tough and well made.
Crystal Graves –
Part worked out great!
Eric –
The pressure sensor burnes out on my air horns. I tried of these under warranty all 3 burned out with in 24 hours. Went with a different type of sensor . no issues.And this is what cane on my horn tank.
R. Simon –
Easy hook up price right