Coolant Temperature Sensor

Overview

The coolant temperature sensor (CTS) monitors the temperature of the engine’s coolant/antifreeze mixture and relays that information to the engine control unit (ECU).

Based on coolant temperature, the ECU adapts fuel mixture, ignition timing and other engine operating parameters. When the sensor is faulty, you might see poor fuel economy, erratic idling, overheating, or a triggered “Check Engine” light.

Our replacement coolant temperature sensor is engineered to match or exceed OEM specifications, delivering reliable data and helping extend engine life.

Key Features

• Precision Temperature Sensing — Uses high-grade thermistor technology to accurately detect coolant temperature and provide the proper signal to the ECU.

• OEM-Quality Materials & Engineering — Built to fit like the original sensor with equivalent fit, form and function.

• Extensive Vehicle Coverage — Designed for compatibility across domestic and import vehicle models, enabling broad application.

• Durable Construction — Engineered to withstand engine bay environments, including thermal cycling, vibration and coolant exposure.

• Warranty Backed — Many sensors (in referenced brand) come with multi-year/ mileage warranties to assure quality and longevity.

Benefits You’ll Appreciate

• Ensures your vehicle’s ECU receives accurate temperature data so the air/fuel ratio and ignition timing are correct — helping maintain engine efficiency.

• Reduces risk of engine overheating, carbon build-up or long-term damage that can result from incorrect coolant-temperature readings.

• Restores proper drivetrain/engine behavior — smoother idle, improved warm-up, better fuel economy and fewer “Check Engine” alerts.

• Direct-fit design saves time on installation and reduces risk of error when replacing compared to generic/unfitted parts.

• Helps extend engine life by enabling proper thermal management and preventing high-temperature stress.