Multiquip 1622283040 Thermo Switch Assembly D1403

The Multiquip 1622283040 Thermo Switch Assembly D1403 is a genuine OEM component designed for the WRS5200DFPU ride-on roller screed. Sourced directly from Multiquip, this assembly carries the exact specifications required to match the original thermal switching circuit in your machine. Confirm part number 1622283040 against your serial tag before ordering to ensure a correct, direct application to the WRS5200DFPU platform.

Key Features

• Genuine OEM Thermal Specification: — Calibrated to the precise activation and cutoff thresholds of the D1403 engine circuit, not an approximated aftermarket tolerance.
• Direct-Application Fit: — Engineered to connect directly to the existing wiring harness and mounting position on the WRS5200DFPU without rework or adaptation.
• WRS5200DFPU Compatibility: — Confirmed fitment for the Whiteman WRS5200DFPU dual-fuel ride-on roller screed series.
• Engine Temperature Protection: — A properly functioning thermo switch safeguards the D1403 engine by triggering a shutdown or warning response before overheating causes internal damage.
• Electrical Safety Compliance: — As a thermal protection component in a fuel-capable engine circuit, using the correct OEM-rated assembly is critical to maintaining safe operating thresholds on dual-fuel equipment.

The thermo switch assembly monitors engine coolant or cylinder head temperature and triggers a protective response — such as an ignition cutoff or dashboard warning — when temperature exceeds a safe operating threshold. On the WRS5200DFPU dual-fuel roller screed, this component is a key line of defense against engine overheating during sustained screed operations. When the switch fails or drifts out of calibration, the engine may run without thermal protection, risking seized components, unplanned shutdowns mid-pour, and costly engine repairs.

For questions about part number 1622283040 or fitment on your WRS5200DFPU, contact the DHS Equipment team directly for support.

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.