Veratron Coolant Temperature Sensor - 40°C to 120°C - M18 x 1.5 Thread

The Veratron Coolant Temperature Sensor – 40°C to 120°C with M18 x 1.5 Thread is a precision engine management component designed to monitor coolant temperature across a wide operating range. This sensor is essential for modern engine control systems, fuel injection tuning, and thermal management in both stock and modified vehicles. Whether you're running OEM diagnostics or building a custom engine management setup, accurate coolant temperature feedback is critical to engine longevity, emission compliance, and performance calibration.

Veratron's sensor uses a thermistor design that translates coolant temperature into a variable resistance signal, allowing the engine control unit (ECU) to adjust ignition timing, fuel mixture, and cooling fan operation in real time. The M18 x 1.5 metric thread ensures secure installation in most European and Japanese marine and automotive platforms without risk of cross-threading or coolant leakage. With a compact 3-inch overall length and lightweight 0.1 lbs profile, this sensor integrates seamlessly into tight engine bay configurations while maintaining the thermal response needed for accurate, lag-free temperature readings across the 40°C to 120°C operating window.

Mechanics and tuners rely on the Veratron Coolant Temperature Sensor when diagnosing cold-start issues, overheating problems, or ECU fault codes related to thermal management. It's ideal for engine swaps, standalone EFI conversions, and vehicles with aftermarket engine management systems where OEM sensor availability is limited. Before installation, verify that your engine block or thermostat housing features an M18 x 1.5 port; cross-reference your vehicle's service manual or contact a specialist if thread pitch is uncertain. Proper calibration of this sensor to your ECU mapping ensures optimal fuel delivery, reduced emissions, and protection against thermal damage during high-load driving.