Air Compressor Pressure Switch One Quarter Inch FNPT, Adjustable 145 To 175 PSI, Four Port, 24 Amp, 120/240V, Replacement Part 5140112-24, Fits 919-16771 919-167780 919-167781 919-725500 919-728500 919-728501 And 1WC95, Built For DIYers And Pros

Adjustable 145-175 PSI 4-Port Air Compressor Pressure Switch
✔️ Single replacement part 5140112-24 (4-port, 24A, 120/240V)

This pressure switch is an adjustable control device for air compressors, used to regulate cut-in and cut-out pressure in residential, industrial, and DIY setups. It replaces failing switches and helps protect circuits and equipment.

✅ 4-port design supports multiple lines
✅ 1/4 FNPT fittings for easy hose connections
✅ Pressure range adjustable 145-175 PSI
✅ 24A rating with 120/240V two-pole switch
✅ Replacement Part 5140112-24 compatible with listed models

💡 What is a handy way to understand a pressure switch in air systems?

- Maintains target PSI by cycling the compressor on/off
- Handy for DIYers and pros to protect pumps and components
- Fits 1/4 FNPT, four-port configurations on 120/240V systems
- Replacement part 5140112-24 works with listed compatible models