Multiquip M809526 Oil Switch Sth-55/4020Tf

The Multiquip M809526 Oil Switch Sth-55/4020Tf is a genuine OEM component designed for STX55J6 and STX55Y6 hydrostatic ride-on power trowels. As a direct OEM replacement, M809526 is manufactured to the same standards as the original part, ensuring correct fitment and dependable operation in the field. This switch is verified to fit STX55 series trowels and is sourced directly through Multiquip's authorized parts network, giving you confidence in both part accuracy and quality.

Key Features

• Genuine OEM Electrical Specification — Manufactured to the original switching threshold and circuit rating, ensuring the oil pressure signal is accurately detected and transmitted.
• Direct-Fit Replacement — Matches the original mounting thread, connector, and port configuration on STX55 series trowels for a straightforward swap.
• Confirmed STX55 Series Fitment — Verified for STX55J6 and STX55Y6 hydrostatic ride-on trowel models.
• Protects Engine and Hydraulic Systems — A properly functioning oil switch triggers the correct warning or shutdown response before low oil pressure causes internal engine damage.
• Operational Safety Compliance — Oil pressure switching is a critical safety function; using the correct OEM-spec switch ensures the machine responds as designed under low-pressure conditions.

An oil switch monitors the lubrication system pressure within the engine and signals the machine's control circuit when pressure drops below a safe threshold. On hydrostatic ride-on trowels like the STX55 series, this protection is essential — a failed or incorrect switch can prevent a low-pressure warning from triggering, allowing engine damage to occur before the operator is aware of a problem. Replacing a worn or faulty oil switch with the correct OEM part restores the machine's ability to protect itself during operation.

For questions about fitment or to confirm this is the right part for your machine, contact the DHS Equipment parts team directly.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.