Switches
Shop premium switches — designed for racing, motorsport, and other high-performance applications. Select a switch to configure size and other options.
Control your auxiliary systems with precision using our high-quality thermal switches, designed for use in performance cooling and oil pump circuits. Ideal for high-performance road cars, motorcycles, and motorsport builds, these switches automatically activate electric fans, oil pumps, or warning systems when fluid temperature thresholds are reached. Our SUSA Cooling Fan and Oil Pump Thermal Switch features a 1/8"-27 NPT thread for universal integration, making it a reliable addition to any custom braided oil or coolant line system where consistent temperature control is critical.
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What does the SUSA thermal switch do?
The SUSA cooling fan and oil pump thermal switch automatically triggers a 12V relay when your oil or coolant fluid reaches a preset temperature. It's ideal for use with electric fans, oil pumps, or transmission coolers in high-performance setups.
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What temperature ratings are available?
This switch is available in three activation temperatures: 82°C (180°F), 88°C (190°F), and 93°C (200°F), allowing you to tailor your cooling strategy to the specific needs of your build.
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Which adapters should I use to install the switch?
The switch features a 1/8"-27 NPT thread and is best installed using one of our inline sensor port adapters — either the aluminium male-to-female adapter with sensor port or the aluminium male-to-male adapter with sensor port for easy integration into existing AN hose systems.
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Can I wire this switch directly to a fan or pump?
No — this thermal switch is intended to trigger a relay, not to carry high current loads. Wiring it directly to your fan or pump can cause switch failure. Always use a properly rated 12V automotive relay.
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What systems can I use this switch with?
This switch is perfect for controlling cooling fans, oil pumps, or transmission coolers in performance cars, track builds, and street applications requiring automated temperature-based activation.