Derale Performance 35030 190°F Inline Thermal Switch 3/8" NPT

The Derale Performance 35030 is a precision inline thermal switch designed to automatically activate electric cooling fans at 190°F. This thermostatic switch provides reliable temperature-based control for aftermarket electric fan installations, ensuring your cooling system engages exactly when needed.

Key Features:

• Activates at 190°F, deactivates at approximately 170°F for optimal temperature management
• 3/8" NPT thread fitting for easy installation into radiator, cylinder head, or intake manifold
• Black anodized aluminum construction for corrosion resistance and durability
• Direct replacement compatibility for Jeep applications and universal fitment for custom installations
• Designed for 12-volt electric fan systems

This thermal switch installs inline with your cooling system and uses a temperature-sensitive probe to monitor coolant temperature. When coolant reaches 190°F, the switch closes the circuit to power your electric fan, then opens again as temperature drops to prevent overcooling. Ideal for upgrading factory mechanical fans to electric or replacing failed OEM thermal switches.