Description
Precise coolant temperature management is essential for maintaining optimal engine performance and preventing thermal stress during extended track sessions or high-demand driving. The Derale Automatic Thermostat Switch 15721 automates fan engagement based on actual coolant temperature, eliminating guesswork and ensuring your cooling system responds exactly when needed. This kit-form solution integrates seamlessly into custom cooling setups, giving you reliable temperature control without constant manual adjustment.
- Activation temperature: 180°F
- Deactivation temperature: 165°F
- Inlet fitting: 8 AN
- Outlet fitting: 8 AN
- Barb fittings: 1/2 inch male
- Format: Complete kit
- Automatic operation: No manual override






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