Buy 2003 Toyota COROLLA SEDAN, CE 1800CC 16-VALVE DOHC EFI, MANUAL, 5-SPEED Engine Coolant Temperature VendorDENSO - OEM Toyota Part # 8342020040 (8342016050, 83420-20040, 83420AA010)

Temperature. Sending. Unit. Engine Coolant Sender. Gauge Assembly, Water TEM.
Calif. Engine Coolant Temperature Sender. Exc.Japan Built Part. From 03/1997. From 12/2002. Japan Built Part. To 03/1997. To 12/2002. Type A. Type B. Vendor:DENSO. Vendor:YAZAKI.

Engine Coolant Temperature Sending Unit - Repair or Replace
If your engine coolant temperature sender 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 2003 TOYOTA COROLLA has any of these symptoms, it's a good idea to let a trained TOYOTA technician perform an inspection.