Picture this: you're cruising down a dusty backroad, the sun beating down, and suddenly you smell that telltale whiff of overheating coolant. Engines don't warn you—they just push limits until something gives. That's where this electric radiator fan thermostat switch steps in, quietly doing its job to keep things from boiling over.
Hot summers, heavy loads, or idling in traffic can spike engine temps fast, risking warped heads, blown gaskets, or worse. Standard fans run constantly or not at all, wasting energy or leaving you vulnerable. This sensor solves it with precision: it closes the circuit at 140°F to fire up the fan, then opens at 125°F once cooled. No more manual checks or guesswork.
Made from durable brass, the probe threads into 1/8" NPT ports or pushes in snugly—ideal for radiator outlets, cylinder heads, manifolds, or blocks. It reads coolant, oil, or water temps accurately, passing power through standard 0.25-inch pin terminals to your fan relay. Compact and corrosion-resistant, it handles vibration, moisture, and daily abuse without flinching. Pair it with our full wiring kits for a plug-and-play setup.
Slip it into your classic truck's radiator hose, and it hums along unnoticed until needed, extending fan motor life by only running when essential. Towing a trailer? It ramps up airflow right on cue, saving fuel over always-on setups. Weekend warriors love how it frees up dash space—no extra gauges required. Install takes minutes with basic tools, and it pays off in fewer breakdowns and cooler confidence.
Whether refreshing an old engine or upgrading for reliability, this thermostat delivers the smarts your cooling system craves. Temps stay steady, your ride stays solid. Order now and feel the difference on your next trip.
