Multiquip 1753883040 Thermometer Switch

The Multiquip 1753883040 Thermometer Switch is a genuine OEM component designed for DLW and DAC series diesel welders and generators, including the DLW330X2, DAW500SA4, DLW400ESA4, DLW400ES/ESA/ESA1, DLW300ES/ESA/ESA1, DAC7000SSA, DAC7000SSW, DAC7000SS, DA7000SSA2GH, and DA7000SSA2. As a direct OEM replacement, this switch is built to the exact specification of the original part, ensuring proper installation and accurate thermal monitoring right out of the box. DHS Equipment sources this part directly through authorized Multiquip channels, so you can order with confidence knowing you are receiving a verified, genuine component.

Key Features

• Genuine OEM Temperature Accuracy — Manufactured to the original switching threshold specification, ensuring the unit responds to temperature changes the same way the factory-installed part does.
• Direct Drop-In Installation — Matches the original connector, thread pitch, and mounting configuration for a clean, tool-matching swap with no adaptation needed.
• Broad Series Compatibility — Fits DLW330X2, DAW500SA4, DLW400ESA4, DLW300ES/ESA/ESA1, DAC7000SS/SSA/SSW, DA7000SSA2, and DA7000SSA2GH models.
• Protects Engine and Alternator From Thermal Damage — A correctly functioning thermometer switch triggers the appropriate warning or shutdown response before heat levels can cause costly internal damage to the unit.
• Critical Safety Component — On diesel welders and generators, thermal monitoring is a core safety function; using a genuine OEM switch maintains the integrity of the original protection circuit.

The thermometer switch monitors the operating temperature of the engine or alternator and signals the machine's control circuit when a threshold is reached. On diesel-powered welders and generators, this warning or shutdown response is the first line of defense against overheating — protecting windings, bearings, and internal engine components from heat-related failure. When this switch fails, the machine may run without any thermal protection, or it may trigger false shutdowns; either condition disrupts operation and puts the equipment at risk.

For fitment questions or help confirming this part is correct for your specific unit, contact the DHS Equipment 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.