BRAND NEW *OEM Quality* coolant temperature sensor to suit Honda CR-V RD RE RM RT RW and CR-Z Hybrid.

From the original RD7 4WD through to the latest hybrid AWD, a drifting coolant sensor on the CR-V family shows up as rough running, poor economy or an erratic cooling fan. Same-day dispatch before 12pm from Melbourne.

TO SUIT

2001-2006: CR-V RD7 2.4L VTEC 4WD
2007-2012: CR-V RE4 2.4L i-VTEC 4WD
2012-2021: CR-V RM 2.0L / 2.4L AWD, RE6/RM 1.6L Turbo Diesel 4WD
2017-2025: CR-V RT,RW 1.5L Turbo / Turbo AWD, RT 2.0L Hybrid AWD, RS,RY 2.0L Plug-In Hybrid
2010-2013: CR-Z ZF1 1.5L Hybrid Coupe

FITMENT CHECK

AWD CR-V models use this sensor's reading as part of the thermal threshold for AWD engagement, so a fault can affect drivetrain behaviour as well as engine running. On the CR-Z Hybrid coupe, the same input feeds the IMA battery and motor thermal strategy.

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

On AWD CR-V variants the ECU factors coolant temperature into the thermal criteria for engaging the rear axle - an inaccurate reading can affect AWD response in addition to the usual fuel trim and idle symptoms.

The CR-Z Hybrid additionally uses this signal for IMA battery and electric motor thermal management, so a failing sensor here can reduce hybrid assist as well as cause the standard coolant-temp fault codes.

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
AWD CR-V: inconsistent AWD engagement
CR-Z: reduced or unavailable IMA hybrid assist

[2001 - 2006] HONDA CR-V RD7 SUV 2.4L VTEC 4WD K24A1 4cyl 118kW
[2007 - 2012] HONDA CR-V RE4 WAGON 2.4L i-VTEC 4WD K24A1,K24Z1 4cyl 125kW
[2012 - 2017] HONDA CR-V RM WAGON 2.0L i-VTEC R20A5,R20A9 4cyl 114kW
[2012 - 2018] HONDA CR-V RM WAGON 2.4L AWD K24Z9 4cyl 140kW
[2015 - 2021] HONDA CR-V RE6,RM SUV/WAGON 1.6L TURBO DIESEL 4WD N16A4 4cyl 118kW
[2017 - 2023] HONDA CR-V RT,RW SUV 1.5L TURBO L15B7,L15BG,L15BY 4cyl 140kW
[2017 - 2023] HONDA CR-V RT,RW SUV 1.5L TURBO AWD L15B7 4cyl 140kW
[2019 - 2023] HONDA CR-V RT SUV 2.0L HYBRID e-CVT AWD LFB1,LFB2 4cyl 158kW
[2023 - 2025] HONDA CR-V RS,RY SUV 2.0L PLUG-IN HYBRID LFB16 4cyl 135kW
[2010 - 2013] HONDA CR-Z ZF1 COUPE 1.5L HYBRID LEA3,LEA1 4cyl 91kW

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	CCS72-3
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, TX215
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