Ensure your vehicle's engine runs smoothly with the 12650595 Engine Coolant Temperature Sensor, an OEM-quality replacement for GM, Chevrolet, Cadillac, Buick, and GMC models. This sensor accurately monitors the engine's coolant temperature, sending precise data to the engine control unit (ECU) to regulate fuel injection and ignition timing. By maintaining optimal engine temperature, it helps prevent overheating and enhances fuel efficiency. Crafted from durable and high-quality materials, this sensor is designed to resist extreme temperatures and corrosion, ensuring long-lasting and reliable performance. Its direct-fit design allows for a quick and straightforward installation, making it ideal for DIY enthusiasts and professional mechanics alike. Fitment:Compatible with a wide range of GM, Chevrolet, Cadillac, Buick, and GMC models. Please check your vehicle's compatibility before purchase.