Multiquip 42009-15 Coolant Sensor

The Multiquip 42009-15 Coolant Sensor is a genuine OEM component designed for the HTXG6DF hydrostatic ride-on power trowel. Sourced directly from Multiquip, this sensor meets the exact output and calibration specifications required by the machine's cooling system monitoring circuit. Verified fitment for the HTXG6DF ensures a direct, hassle-free installation with no guesswork on compatibility.

Key Features

• OEM-Calibrated Signal Output — Manufactured to the precise resistance and temperature-response curve required by the HTXG6DF engine management system, ensuring accurate coolant temperature readings.
• Direct OEM Replacement — Matches the original sensor's thread pitch, connector type, and mounting position for a straightforward swap during scheduled maintenance or repairs.
• Confirmed Fitment for HTXG6DF — Verified for the Multiquip HTXG6DF hydrostatic ride-on power trowel series, eliminating the risk of ordering an incompatible part.
• Protects Engine from Thermal Damage — A properly functioning coolant sensor continuously feeds temperature data to the operator and control system; a failed sensor can mask overheating conditions and lead to costly engine damage.
• Electrical Safety Compliance — As a genuine OEM electrical component, it meets the original circuit design specifications, reducing the risk of false readings, warning light faults, or unintended shutdowns during operation.

A coolant sensor monitors the temperature of the engine's coolant and relays that data to the instrument cluster or electronic control unit on the machine. This allows the operator to detect overheating conditions before they cause internal engine damage. When a coolant sensor fails or provides inaccurate readings, the machine may show false temperature warnings, fail to alert the operator to a genuine overheat event, or trigger unnecessary shutdowns — all of which disrupt productivity and risk engine reliability.

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.