MAHLE Engine Coolant Temperature Switch

The MAHLE Engine Coolant Temperature Switch (also called a coolant temperature sensor, ECT sensor, or coolant temp sender) monitors the temperature of the engine coolant. It sends that information to the engine control unit or the instrument cluster. The signal helps the engine management system adjust fuel delivery, ignition timing, and cooling fan operation. It also drives the temperature gauge or warning light.

Key Features:

• Monitors engine coolant temperature accurately for correct fuel and ignition control
• Supports proper cooling fan activation and temperature gauge or warning indication
• Made to meet OE specifications for fit, function, and reliability
• Built to withstand constant heat cycling, vibration, and exposure to coolant
• Backed by MAHLE's experience as an original equipment supplier to the automotive industry

A faulty coolant temperature switch can cause hard starting, poor fuel economy, rough idle, overheating, or an inaccurate temperature reading. Replacing it with a quality MAHLE part helps restore dependable engine performance and protect the engine from heat-related problems. Choose the specific part number that matches your application from the options listed on this page.