Standard Motor Products TS363 Engine Coolant Fan Switch - Stock Replacement

The Standard Motor Products TS363 is a direct-fit replacement coolant fan switch engineered to restore proper electric cooling fan operation. This temperature-activated switch monitors engine coolant temperature and signals the fan controller to engage the electric cooling fan at the correct threshold, helping prevent overheating and maintain optimal engine operating temperature.

Sold under Standard's Intermotor professional-grade line, the TS363 is built to meet the stringent demands of today's service professionals. The switch employs two distinct operating technologies depending on design: a custom wax formulation that expands when heated to activate a snap-action electrical contact, or a formed bimetallic contact arm that leverages the different expansion rates of two fused metals for creep-action precision. All units are factory-calibrated and tested to confirm switch actuation at the specified temperature set point, ensuring reliable, repeatable performance.

Key Features:

• Stock replacement thermal switch style — direct fit, no modification required
• Calibrated and tested at the factory to confirm actuation at the specified temperature
• High-grade materials designed to withstand the demands of professional service applications
• Snap-action or bimetallic contact design for precise, consistent fan engagement
• Meets or exceeds OEM specifications for fit, form, and function
• Sold individually (each)

The Standard Motor Products TS363 coolant fan switch is a reliable, OEM-quality solution for restoring correct electric cooling fan operation. No relay, sending unit, wiring harness, or manual override switch is included.