Kohler Oil Pressure Switch OEM 25 099 27-S — Replacement Sensor for Low-Pressure Shutdown, Genuine Fit

The Kohler Switch Oil Pressure #KOH-25 099 27-S is an OEM oil pressure switch designed to restore accurate pressure sensing and safe engine shutdown for compatible Kohler engines.

This genuine Kohler replacement part (OEM part number 25 099 27-S, replacing earlier MPNs 52-099-06 and 25-099-24-S) is built to the manufacturer's specifications so your equipment reads oil pressure correctly. Installing the correct pressure switch helps maintain proper engine protection systems that depend on accurate pressure input. Always verify compatibility with the original equipment owner’s manual before ordering or installing.

What exactly does this Kohler oil pressure switch do?

The switch monitors engine oil pressure and sends an electrical signal when pressure falls below a preset threshold. That signal is commonly used by control systems to trigger alarms or shut the engine down to prevent damage. As an OEM component, it matches the original fit, electrical connections, and performance expectations.

• Detects low oil pressure and completes/breaks an electrical circuit
• Interfaces with engine controls or safety shutdown circuits
• Engineered to the specifications of Kohler’s original design

How do I know this part fits my engine?

Confirm fitment by checking the engine’s parts list or the owner’s manual for the OEM number 25 099 27-S or the legacy numbers 52-099-06 and 25-099-24-S. If the manual lists any of those numbers, this switch is intended as a direct replacement. When in doubt, compare the electrical connector, thread size, and mounting location to the unit you're replacing.

• Compare OEM/service manual part numbers for exact match
• Confirm thread size and connector type match the existing switch
• Check physical mounting and clearance before installation

How should this pressure switch be installed and tested?

Installation requires basic mechanical and electrical skills: remove the old switch, thread in the new unit to the specified torque, and reconnect electrical leads securely. After installation, run the engine and confirm the control panel reads pressure correctly and that any safety shutdown functions operate as intended. If unsure, have a qualified technician perform the replacement and testing.

• Shut off engine and disconnect battery before replacing
• Use proper thread sealant if specified by manufacturer
• Verify electrical connections and test under normal running conditions

How durable is this Kohler OEM switch and when should I replace it?

As an OEM component, the switch is built for the operating conditions specified by Kohler, but like all mechanical sensors it can wear or fail from age, vibration, contamination, or repeated thermal cycling. Replace the switch if it gives inconsistent readings, fails to actuate, leaks, or after a recommended service interval listed by Kohler.

• Meets Kohler’s original quality and fit standards
• Susceptible to wear from vibration, oil contamination, and corrosion
• Replace immediately if indicator warnings or shutdowns occur

Who is this part for? This Kohler pressure switch is intended for owners, technicians, and fleet managers who need an exact OEM replacement to maintain engine protection systems on Kohler-powered equipment. It’s suitable for repair shops and maintenance teams that require a drop-in switch matching the original specifications—especially when the engine’s safety or alarm circuits depend on reliable oil pressure feedback. Always use the equipment’s owner manual to confirm compatibility and follow safety procedures during replacement.