① 37760-P00-003 Cooling Fan Temperature Switch
[Product Name] Radiator Fan Temperature Switch / Radiator Thermal Switch
Core Function
Monitors engine coolant temperature; automatically activates when the preset temperature is reached to engage the electric cooling fan.
Automatically deactivates once the temperature drops, stopping the fan and preventing engine overheating/boiling over.
Product Specifications
Thread Size: M18 × 1.5
Pins: 2-Pin Connector
Operating Temperature: Standard control range; ensures precise fan activation.
Material: Copper Probe + High-Temperature-Resistant Sealing Ring; corrosion-resistant.
Installation Location
Installed on the engine cylinder head, thermostat housing, or the upper radiator hose inlet; connects directly into the cooling fan control circuit.
② 37870-PK2-005 Engine Water Temperature Sensor (ECT)
[Product Name] Engine Coolant Temperature Sensor / ECU Water Temp Signal Sensor
Core Function
Transmits real-time water temperature signals to the vehicle's onboard computer (ECU).
Assists in controlling: cold-start fuel injection volume, idle speed, ignition timing, fan activation/deactivation, and transmission shifting.
Product Specifications
Thread Size: M12 × 1.5
Pins: 2-Pin
Signal Type: Linear Thermistor Signal
Operating Voltage: Compatible with 12V vehicle electrical systems.
Installation Location
Installed within the engine cylinder head water jacket or near the thermostat housing, typically on the side closest to the ECU wiring harness.
③ 37750-PH2-014 Dashboard Water Temperature Gauge Sensor
[Product Name] Water Temperature Gauge Sending Unit / Dashboard Temp Sensor
Core Function
Dedicated to providing temperature signals specifically for the dashboard water temperature gauge inside the cabin.
Ensures the gauge needle accurately displays the coolant temperature level, enabling intuitive temperature monitoring.
Product Specifications
Thread Size: 1/8-28
Pins: Single Terminal (Single Pin)
Stable Response: Ensures the gauge needle remains steady without erratic fluctuations.
Sealing: Includes a standard high-temperature-resistant sealing ring.
Installation Location
Installed on the side of the cylinder head, near the intake manifold, or on the thermostat cover; connects to the dashboard instrument wiring harness.
✅ A Complete 3-Piece Set for a One-Stop Solution—No Redos Required: Includes the 37760 (Fan Control), 37870 (ECU Signal), and 37750 (Instrument Cluster Display). This trio serves as the original factory standard for older Honda and Acura models, featuring distinct functions that provide comprehensive coverage for the entire vehicle's coolant temperature system.
✅ Precise Specifications, Eliminating Installation Errors: The revised thread specifications offer a 100% match to original factory parts, preventing installation failures and coolant leaks caused by incorrect sizing.
✅ Stable Quality: Features a copper probe, heat-resistant sealing ring, and standard threading; resistant to both corrosion and aging, ensuring a worry-free after-sales experience for international customers.
✅ Wide Compatibility: Fits a broad range of classic models produced between 1986 and 2002, including the Honda Accord, Civic, CR-V, and Odyssey, as well as the Acura Integra, CL, TL, and others.
Honda Accord III (CA) 2.0L / 2.2L (F20A, F22A) 1985–1989
IV (CB3, CB5, CB7) 2.0L / 2.2L / 2.3L (F20B, F22B, F23A) 1989–1993
V (CC, CD) 2.0L / 2.2L / 2.7L V6 (F20B, F22B, C27A) 1993–1997
VI (CF, CG) 2.0L / 2.3L / 3.0L V6 (F20A, F23A, J30A) 1997–2002
Honda Civic IV (ED, EC, EE) 1.5L / 1.6L (D15B, D16A) 1987–1993
V (EG, EH) 1.5L / 1.6L (D15Z, D16Y) 1991–1995
VI (EJ, EK) 1.4L / 1.5L / 1.6L / 1.8L (D14, D15, D16, B18) 1995–2000
Honda CR-V 1st Gen (RD1) 2.0L (B20B, B20Z) 1996–2001
Honda Odyssey RA1, RA2 2.3L (F23A) 1995–2000
Honda Prelude III (BA) 2.0L / 2.1L (B20A, B21A) 1986–1992
IV (BB) 2.2L / 2.3L (H22A, H23A) 1992–2001
Honda CR-X / Del Sol CR-X (ED, EF) 1.5L / 1.6L (D15B, D16A) 1987–1991
Del Sol (EH) 1.6L (D16Z) 1993–1997
Acura Integra DA, DB 1.6L / 1.8L (D16A, B18A/B/C) 1986–2001
Legend KA1, KA2, KA3 2.7L / 3.2L V6 (C27A, C32A) 1986–1991
Vigor CB5 2.5L (G25A) 1991–1995
CL / TL UA1, UA2, UA3 2.2L / 2.3L / 3.0L (H22, F23, J30) 1996–2001
Rover 600 Series 620i / 623Si 2.0L / 2.3L (Honda F20, F23) 1993–1999
