Multiquip 42009-43 Oil Pressure Sensor

The Multiquip 42009-43 Oil Pressure Sensor is a genuine OEM component designed for the HTXG6DF hydrostatic ride-on power trowel. Sourced directly from Multiquip, this sensor meets the exact specifications required by the HTXG6DF platform, ensuring accurate oil pressure monitoring and engine protection. Keeping this sensor in good working order is a straightforward way to protect the investment in your finishing equipment and avoid unexpected engine failures on the pour.

Key Features

• Genuine OEM Accuracy — Manufactured to Multiquip's exact electrical resistance and pressure threshold specifications for dependable, true-reading performance.
• Direct-Fit Installation — Engineered as a drop-in replacement that connects to the factory wiring harness and threads into the existing sensor port on the HTXG6DF engine block.
• Confirmed Fitment — Verified for the HTXG6DF hydrostatic ride-on trowel series; verify your model code before ordering.
• Engine Protection Where It Counts — A correctly functioning oil pressure sensor triggers the warning or shutdown circuit before low oil pressure causes catastrophic internal engine damage, protecting the drivetrain during finishing operations.
• Electrical Integrity — OEM construction ensures the sensor's signal output matches the machine's control system expectations, preventing false warnings or missed fault conditions.

An oil pressure sensor monitors the lubrication pressure inside the engine and sends a signal to the machine's warning or shutdown system. When oil pressure drops below a safe threshold — due to low oil level, a failing pump, or a developing internal fault — the sensor triggers an alert or automatic shutoff to prevent serious engine damage. A faulty or failed sensor can either mask a real low-pressure condition, leaving the engine unprotected, or generate false warnings that interrupt work unnecessarily; replacing a worn sensor restores the integrity of the entire engine protection circuit.

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.