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Hella Coolant Temperature Sensor - 6PT 009 309-421

Hella Coolant Temperature Sensor - 6PT 009 309-421

This Hella Sensor, coolant temperature (Part Number: 6PT 009 309-421) is manufactured to OE-qualit...

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eBayHELLA 6PT 009 309-421 Sensor, coolant temperature for HONDA
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Product Information

Full details

This Hella Coolant Temperature Sensor (Part Number: 6PT 009 309-421) is designed for vehicle owners needing a reliable OE-quality replacement part. Its primary benefit is ensuring accurate engine temperature readings for optimal performance and fuel efficiency. A key consideration is the need to verify specific vehicle compatibility before purchase. This sensor features a bolted mounting type, 12V voltage, M10x1.25 thread size, 17mm spanner size, and is an NTC Sensor with 2 pins.

All features

Model Part Number6PT 009 309-421
BrandHella

Extended Product Information

FAQs

What is the primary function of a coolant temperature sensor?

The coolant temperature sensor measures the engine's coolant temperature and sends this information to the vehicle's Engine Control Unit (ECU). The ECU uses this data to adjust fuel injection, ignition timing, and other engine functions for optimal performance and emissions.

How do I know if my coolant temperature sensor needs replacing?

Common signs include the Check Engine Light illuminating, inaccurate temperature gauge readings, poor fuel economy, rough idling, or the engine running too hot or too cold.

What does OE-quality mean?

OE-quality means the part is manufactured to meet or exceed the standards set by the original equipment manufacturer, ensuring it performs reliably and fits correctly.

What thread size does this sensor have?

This sensor features an M10x1.25 thread size.

What tools are typically needed for installation?

You will generally need a 17mm spanner to remove and install the sensor, along with basic hand tools for disconnecting electrical connectors.

Can I install this sensor myself?

Yes, if you are comfortable with basic automotive maintenance and have the correct tools. It's important to follow proper safety procedures, such as ensuring the engine is cool before starting.

What vehicles is this sensor compatible with?

This sensor is compatible with various Honda models, including CR-V IV (2012-2018 2.0), Jazz III (2008-2015 1.3), and FR-V (2004-2006 1.7, 2.0). Always verify fitment for your specific vehicle.

Troubleshooting

Check Engine Light illuminates with P0115-P0119 codes (Engine Coolant Temperature Circuit)

Inspect the sensor wiring and connector for damage, corrosion, or loose connections. Verify the sensor resistance values against specifications (consult a service manual). If wiring is intact, the sensor may need replacement.

Inaccurate temperature gauge readings (reads too high or too low)

Check for a faulty thermostat or air pockets in the cooling system, which can affect sensor readings. If the cooling system is functioning correctly, the sensor may be defective and require replacement.

Engine overheating or running too cool

Ensure the cooling system is full and the thermostat is functioning properly. A faulty coolant temperature sensor can cause the ECU to mismanage the cooling fan or fuel mixture, leading to temperature issues.

Poor fuel economy or rough idle

An incorrect coolant temperature reading can lead the ECU to use an inappropriate fuel mixture. Verify the sensor's accuracy and check for other potential engine performance issues.

Pros and Cons

Pros

  • Ensures accurate engine temperature readings, crucial for performance and fuel economy.
  • Manufactured to OE-quality standards for reliability and exact fitment.
  • Durable bolted mounting type provides a secure connection.
  • Compatible with a range of popular Honda vehicle models.

Cons

  • Requires careful verification of vehicle fitment before purchase.
  • Installation may require specific tools (e.g., 17mm spanner).
  • As a replacement part, it does not add new functionality beyond its intended purpose.

Setup, Compatibility & Care

Compatibility Verification:

Before purchasing, it is essential to verify fitment for your specific vehicle. Cross-reference the part number (6PT 009 309-421) with your vehicle's make, model, year, and engine size. OEM cross-references include HONDA: 37 870 PNA 002, HONDA: 37870-PLC-004, HONDA: 37870-PNA-003, and HONDA: 37870d.

Installation:

  1. Allow the engine to cool down completely before starting.
  2. Locate the existing coolant temperature sensor on the engine block or thermostat housing.
  3. Disconnect the electrical connector from the old sensor.
  4. Use a 17mm spanner to carefully unscrew and remove the old sensor.
  5. Clean the mounting threads on the engine.
  6. Thread the new Hella sensor in by hand to avoid cross-threading.
  7. Tighten the sensor securely using the 17mm spanner (do not overtighten).
  8. Reconnect the electrical connector.
  9. Start the engine and check for leaks. Monitor the temperature gauge.

Care:

This is a sealed electronic component and requires no routine maintenance. Ensure the electrical connection remains clean and secure. Avoid spraying cleaning agents directly onto the sensor or its connector.

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