SHURFLO Pressure Switch Replacement Kit 94-375-05 — 40–60 PSI Direct-Fit for 8000-Series Pumps, OEM Match

The SHURFLO 94-375-05 is a direct replacement pressure switch kit designed to restore automatic on/off operation for compatible SHURFLO 8000-series water pumps at 40–60 PSI.

If your SHURFLO 8000-series pump has lost its automatic cycling or the pressure cut-in/cut-out has drifted, this replacement switch kit provides the specific 40–60 PSI switching component used on a range of 8000, 8006, 8007, 8009 and 8020 models. The kit replaces the original factory switch assembly so you can return the pump to reliable automatic pressure control without replacing the entire pump head. It’s engineered to match SHURFLO specifications for fit and function, making repairs faster and more economical.

How do I know this switch fits my SHURFLO pump?

Check the pump model number stamped on your unit and compare it to the supported list: 8000-443-136, 8000-543-136, 8000-541-236, 8000-543-236, 8000-543-936, 8006-543-236, 8007-543-236, 8009-541-236, 8009-543-236, 8009-543-936, and 8020-513-236. If your model matches one of these, the replacement switch is the intended direct-fit part.

• Fits many SHURFLO 8000-series models listed above
• Designed to replace original 40–60 PSI factory switch
• Direct-fit form and mounting to minimize modification

What performance can I expect after installing the replacement switch?

Once installed correctly, the pump should resume normal automatic cycling, turning on at the configured cut-in pressure and off at the cut-out pressure within the 40–60 PSI range. This restores standard pressure control for household, RV, marine, or solar pumping setups that rely on the 8000-series assemblies.

• Restores automatic on/off cycling behavior
• Re-establishes 40–60 PSI cut-in/cut-out operation
• Reduces the need for full pump replacement when only the switch failed

How difficult is installation and what tools do I need?

Installation is straightforward for someone comfortable with basic pump maintenance; it typically requires removing the pump head cover, disconnecting the old switch, and fitting the new assembly in the same mounting location. Basic hand tools and attention to wiring polarity and sealing surfaces are all that’s needed.

• Requires simple hand tools (screwdriver, pliers, wrench)
• Disconnect power before service and follow SHURFLO wiring guidelines
• Check seals and gaskets during reassembly for leak-free operation

What specifications should I verify before buying?

Confirm the pressure range (40–60 PSI) and compatibility with your exact pump model number. Also verify that electrical connections and terminal layout match your existing switch so it can be swapped without adapter parts.

• Pressure rating: 40–60 PSI
• Compatible with designated SHURFLO 8000-series model numbers
• Matches original terminal layout and mounting footprint

Who is this for: This replacement kit is intended for DIYers, maintenance technicians, RV and marine owners, and solar-water-system operators who need an authentic SHURFLO replacement switch to repair an 8000-series pump. If your pump’s automatic pressure control has failed but the motor and diaphragm are otherwise in good condition, this kit lets you restore reliable pressure switching without the expense of a full pump replacement.