Replacement Pressure switch for 100 psi Shurflo pump

Frequently Asked Questions

1. What is this product?
It’s a replacement pressure switch designed for 100 psi Shurflo pumps — the part that tells your pump when to turn on and off as pressure changes.

2. Which pumps is it compatible with?
It’s made to work with Shurflo 12 V 100 psi pumps, especially the common 8000 series window-cleaning and water-fed pole systems.

3. Why would I need to replace the pressure switch?
Over time the switch can wear out, fail to cut in/out properly, or cause your pump to run continuously or not start at all — replacing it restores normal operation.

4. What does “100 psi” mean?
PSI stands for pounds per square inch — it’s the pressure the switch is set to respond to. When your system pressure hits around 100 psi, the switch cuts the pump off to protect it.

5. Is this an OEM (original) part?
Yes — this is a genuine Shurflo pressure switch made to fit and perform like the original component.

6. How do I install it?
Installation is straightforward — the switch replaces the old one in your pump. If you’re unsure, follow the pump’s service manual or contact a technician. Many kits include basic installation guidance.

7. How long does a pressure switch last?
That depends on use, but frequent cycling, debris, or electrical issues can shorten its life. Replacing it when performance drops will keep your pump healthy.

8. Can a bad pressure switch damage my pump?
Yes — a faulty switch can cause dry running or constant operation, which stresses the pump and may shorten pump life.

9. What should I check before replacing the switch?
Ensure the pump is wired correctly, power supply is stable, and that there’s no blockage or leaks — sometimes these issues mimic a bad switch.

10. Is this easy for a DIY fix?
Many people replace pressure switches themselves, but if you aren’t comfortable with electrical or pump work, get help from a technician to avoid mistakes.