NGK EJ0001 NTK 76427 Cylinder Head Temperature Sensor, 2-Terminal

The NGK EJ0001 (NTK 76427) cylinder head temperature sensor, also called a CHT sensor or engine temperature sensor, reads the temperature of the cylinder head. It sends an analog signal to the engine control module (ECM). The ECM uses that signal to calculate ignition timing and fuel delivery, which helps maintain engine performance, efficiency and a safe operating temperature.

Key Features:

• Engineered to meet or exceed OE fit, form and function
• Thermistor placement in the housing matches OE for correct output
• Thermal conductive grease inside the brass housing improves heat transfer and response time
• Thread sealant or O-ring pre-installed where applicable
• Female connector with 2 blade terminals and a square connector shape
• Flange mount design
• Compact size of approximately 1.5 x 1.0 x 2.6 in (38 x 25 x 67 mm)

Cross-References: Ford 9L8Z-6G004-A, 9L8Z-6G004-B, 9L8Z-6G004-D, 9L8Z-6G004-E, 9L8Z-6G004-F; Mazda CA01-18-840, CA01-18-840A, CA01-18-840B, ZZC4-18-840, ZZC4-18-840A, ZZC4-18-840B, ZZC4-18-840C; Standard Motor Products TS-556, TS-643, TS-653, TX188; BWD WT5198, WT7288, WT729, WT7298.

Common signs of a failing sensor: check engine light, erratic or non-working temperature gauge, erratic or non-working cooling fan operation, and engine overheating. Replacing it restores accurate temperature monitoring.