Standard Motor Products TS578 Intermotor Coolant Fan Temperature Switch

The Standard Motor Products TS578 is a direct-fit replacement cooling fan temperature switch, sold under Standard's trusted Intermotor product line. This thermal switch monitors coolant temperature and signals the electric cooling fan to engage or disengage, helping maintain proper engine operating temperature and prevent overheating.

Standard Motor Products engineers this switch to meet or exceed original equipment (OEM) specifications, ensuring proper fit, form, and function right out of the box. The bimetallic thermal design uses the different expansion rates of two metals fused together to reliably trigger fan activation at the factory-calibrated temperature set point — no guesswork, no adjustments needed.

Key Features:

• OE Replacement Design: Engineered to stock thermal switch specifications for a hassle-free, plug-and-play installation
• Bimetallic Contact Arm Construction: Durable formed bimetallic contact arm activates a snap-action electrical contact for precise and reliable switching
• Factory Calibrated: All units are calibrated and tested to confirm switch actuation at the specified temperature set point
• 3-Terminal Connector: Features a 3-pin female pin-type connector configuration for direct OE connector compatibility
• OE Cross-Reference: Replaces OE part number 61318363677
• Quality Tested: Each unit undergoes calibration and actuation testing to meet the demands of professional service
• Sold Individually

The Standard Motor Products TS578 cooling fan switch is backed by a 3-year/36,000-mile warranty, reflecting the brand's commitment to quality and durability. It is a reliable, cost-effective solution for restoring proper electric cooling fan operation on compatible vehicles.