Standard Motor Products TS539 Engine Cooling Fan Switch 2-Terminal Stock Replacement

The Standard Motor Products TS539 is a direct-fit replacement engine cooling fan switch designed to restore proper electric cooling fan operation. This temperature-actuated switch monitors engine coolant temperature and signals the electric radiator fan to engage when the engine reaches its operating threshold, helping to prevent overheating and maintain optimal engine temperatures.

Key Features:

• OEM-quality replacement — manufactured to meet or exceed original equipment specifications for proper fit, form, and function
• 2-terminal design — stock-style connector configuration for a direct plug-in installation with no wiring modifications
• Temperature-activated switching — opens and closes the cooling fan circuit at precise, factory-calibrated coolant temperature thresholds
• Stock thermal switch style — maintains factory cooling fan engagement behavior
• Sold individually — relay, sending unit, wiring harness, and manual override switch not included
• UPC: 091769833688

Standard Motor Products is a leading independent supplier to the automotive aftermarket with a long-standing reputation for quality and engineering integrity. The TS539 coolant fan switch, also known as a radiator fan switch or engine cooling fan temperature switch, is the trusted OE-style solution for restoring reliable cooling fan control.