Buy 1991 Mazda RX-7 Engine Coolant Temperature Sensor. Make, Switch, Symptoms - OEM Mazda Part # NF0218840 (NF02-18-840)

Engine Coolant Temperature Sensor. Sensor, Water Temperature.
Temperature Sensor for Engine Coolant.

Engine Coolant Temperature Sensor

Fits RX-7

Engine Coolant Temperature Sensor - Repair or Replace
If your engine coolant temperature sensor has failed, you may notice one of several symptoms: your temperature gauge doesn’t move, your engine overheats without warning, your radiator fans don’t switch on, or they don’t switch off. If your 1991 Mazda RX-7 has any of these symptoms, it's a good idea to let a trained Mazda technician perform an inspection.