Description
Genuine OEM Denso Mazda Water Temp Sensor (ECU) – Suits FD RX7 and various other Mazda models as well as some Ford models
This is the engine coolant temperature (ECT) sensor that the ECU uses to make adjustments to fueling and ignition as the engine coolant temperature changes. Note that this is NOT the sender that is connected to the water temp gauge on the dashboard.
Replaces original Green, Grey and Black Cap sensors
M12 x 1.5 Thread
Hex: 19.0mm
Replaces the following part numbers:
- Ford – 3 405 645
- Ford – 3 465 427
- Ford – 3 601 374
- Ford – B3C8-18840
- Ford – B593-18840-A
- Ford – F32Z-12A648-A
- Ford – F42Z-10884-A
- Mazda – B 3C8 18 840
- Mazda – B 593-18-840 A
- Mazda – N 391-18-840
- Mazda – N F02-18-840
- Mazda – Y 702 18 840
- Denso – 179700-0110
- Denso – 179700-0140
- Denso – 179700-0220
Fitment Examples Include:
- MAZDA RX7 FD3S with 13B Turbo engine
- MAZDA 1.8 MX-5 NA with BP engine
- MAZDA 323 1.8 (08/94 – 09/98) with BP engine
Optional 2-pin connector to suit this sensor also available separately:
Mazda FD RX7 Engine Coolant Temperature Sensor Connector
