BRAND NEW *OEM Quality* coolant temperature sensor to suit Honda Civic FA FD FB FC FK 1.3L-2.0L sedans and hatchbacks.

The Civic is SensorGal's highest-volume Honda fitment - a tired coolant sensor here shows up as rough idle, poor economy or an erratic temp gauge across every generation from the 7th-gen hybrid to the current e-HEV. Dispatched same-day from Cranbourne VIC.

TO SUIT

2004-2005: Civic ES,ET 1.3L Hybrid LDA1 (7th gen)
2005-2012: Civic FA,FD 1.3L Hybrid / 1.8L / 2.0L (8th gen sedan)
2005-2011: Civic FK,FN 1.8L / Type R 2.0L (8th gen hatchback)
2012-2016: Civic FB 1.8L / 2.0L, FK 1.8L / 1.6L Turbo Diesel (9th gen)
2016-2023: Civic FC 1.5L Turbo RS / 1.8L, FK 1.5L Turbo / 1.8L (10th gen)
2022-2025: Civic FL 2.0L Hybrid e-HEV (11th gen)

FITMENT CHECK

On the 9th generation Civic FD2 2.0L this sensor also triggers the thermo fan switch. On the FK3 1.6L i-DTEC turbo diesel, a fault can additionally set EGR or glow-plug related codes alongside the standard coolant-temp codes.

OEM PART NUMBERS

37870-RTA-005
37870-RWC-A01
37870-RZA-007

OTHER PART NUMBERS

ASHIKA: 64-04-403
DELPHI: TS10288
VALEO: 700101
WALKER PRODUCTS: 211-1080

PACKAGE INCLUDES

1 x Coolant Temperature Sensor with 2-pin oval connector, M10 x 1.25mm thread - direct plug-and-play fitment, no wiring modification required.

ABOUT THIS SENSOR

Across every Civic generation this part fits, the ECU uses the same coolant reading to manage VTEC or i-VTEC engagement timing and cold-start fuel enrichment - a drifting signal causes rough idle and delayed valve timing changes.

On the FK3 turbo diesel the coolant signal also feeds the glow plug and EGR warm-up strategy, so a fault on this variant is more likely to trip an emissions-related code than on the petrol Civics.

COMMON SYMPTOMS OF FAILURE

Rough idle or hard starting when cold
Poor fuel economy or excessive fuel consumption
Black smoke from the exhaust (engine running rich)
Engine overheating or cooling fan running constantly
Check Engine Light with fault code P0116, P0117 or P0118
Incorrect or fluctuating temperature gauge reading
FK3 diesel: EGR or glow-plug fault codes alongside P0116-P0118

[2004 - 2005] HONDA CIVIC ES,ET SEDAN 1.3L HYBRID LDA1 4cyl 61kW (MKVII)
[2006 - 2010] HONDA CIVIC FA,FD SEDAN 1.3L HYBRID LDA2 4cyl 70kW (MKVIII)
[2010 - 2012] HONDA CIVIC FA,FD SEDAN 1.3L HYBRID LDA2 4cyl 85kW (MKVIII)
[2005 - 2012] HONDA CIVIC FA,FD SEDAN 1.8L R18A1,R18A2 4cyl 103kW (MKVIII)
[2006 - 2012] HONDA CIVIC FA,FD SEDAN 2.0L K20A3,K20Z2 4cyl 114kW (MKVIII)
[2005 - 2011] HONDA CIVIC FK,FN HATCHBACK 1.8L R18A2 4cyl 103kW (MKVIII)
[2007 - 2011] HONDA CIVIC FK,FN HATCHBACK TYPE R 2.0L K20Z4 4cyl 148kW (MKVIII)
[2012 - 2016] HONDA CIVIC FB SEDAN 1.8L R18Z4,R18A1,R18Z1 4cyl 104kW (MKIX)
[2013 - 2016] HONDA CIVIC FB SEDAN 2.0L R20A5 4cyl 114kW (MKIX)
[2012 - 2016] HONDA CIVIC FK HATCHBACK 1.8L R18Z4 4cyl 104kW (MKIX)
[2013 - 2015] HONDA CIVIC FK HATCHBACK 1.6L TURBO DIESEL N16A1 4cyl 88kW (MKIX)
[2016 - 2023] HONDA CIVIC FC SEDAN 1.5L TURBO RS L15B7,L15BB 4cyl 127kW (MKX)
[2016 - 2023] HONDA CIVIC FC SEDAN 1.8L R18Z1 4cyl 104kW (MKX)
[2017 - 2023] HONDA CIVIC FK HATCHBACK 1.5L TURBO VTEC L15B7 4cyl 127kW (MKX)
[2017 - 2023] HONDA CIVIC FK HATCHBACK 1.8L R18Z1 4cyl 104kW (MKX)
[2022 - 2025] HONDA CIVIC FL HATCHBACK 2.0L HYBRID LFC1 4cyl 135kW (MKXI)

How do I test a coolant temperature sensor?

The most common test is to measure the sensor resistance with a multimeter at a known coolant temperature and compare against the manufacturer resistance curve. A cold engine (20 degrees C) typically reads 2,000 to 3,000 ohms and drops to around 200 to 300 ohms at operating temperature (90 degrees C). An OBD2 scanner showing a fixed temperature reading that does not change as the engine warms up is also a strong indicator of sensor failure.

Can a faulty coolant temperature sensor cause my engine to overheat?

Indirectly yes. If the sensor reports a lower temperature than actual, the ECU may not activate the cooling fan at the correct time, allowing the engine to overheat. It can also suppress the dashboard warning light, meaning you may not be alerted until the engine is already at a dangerously high temperature. Replace a suspected faulty sensor promptly.

Do I need to drain the coolant to replace the sensor?

Not always - many coolant temperature sensors can be replaced quickly with minimal coolant loss if you work fast and have a replacement ready to thread in immediately. However on some vehicles the sensor location requires partial coolant drainage. Check the sensor position on your specific engine before starting. Always use fresh coolant when topping up after replacement.

What are the symptoms of a faulty coolant temperature sensor?

Symptoms include poor fuel economy, black smoke, engine overheating warning, incorrect temperature gauge reading, hard starting when cold, and rough idle. Fault codes P0115 to P0119 are commonly associated with coolant temperature sensor faults.

Is it safe to drive with a bad coolant temperature sensor?

A faulty coolant temperature sensor can cause the ECU to run rich fuel mixtures and prevent the cooling fan from operating correctly, risking engine overheating. Replace it promptly - it is a low-cost part that can prevent expensive engine damage.

How do I know if my coolant temperature sensor or my thermostat is faulty?

A faulty thermostat typically causes the engine to overheat or never reach operating temperature. A faulty coolant temp sensor causes incorrect gauge readings and running issues but the coolant itself may be at the correct temperature. An OBD2 scanner showing live coolant temp data helps distinguish between the two.

Are there two coolant temperature sensors on my vehicle?

Many vehicles have two sensors - one for the ECU (engine management) and one for the dashboard temperature gauge. They look similar but are not interchangeable. Check your vehicle's service manual or contact us with your vehicle details to confirm which sensor you need.

Identification
SKU	CCS72-2
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	CCS72
Reference OEM Number	37870-RTA-005
Other OEM Numbers	37870-RTA-005, 37870-RWC-A01, 37870-RZA-007
Related Part Numbers	CS859, TS10288, TX225
Trade Part Numbers	VEMO: V26-72-0009, HELLA: 6PT 009 309-601, NTY: ECT-HD-004
Product Specifics
Product Type	SENSOR
Sensor Type	Coolant Temperature Sensor
Thread Size	M10x1.25mm
Spanner Size	17mm
Number of pins	2-Pin
Connector Shape	oval
Housing Colour	White
Compatible Makes	Honda
Fitment Type	Direct Replacement
Other Details
Note	Always verify fitment using your vehicle's OEM part number.
Unit Of Measure	ea