Davies Craig Coolant Temperature Sensor - 1/8 NPT Thread
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Product Information
Full details
This Davies Craig Coolant Temperature Sensor with an 1/8" NPT thread is designed for automotive enthusiasts and mechanics needing a reliable spare or replacement part for monitoring engine coolant temperatures, particularly when using Davies Craig inline adaptors or fan switch kits. Its key benefit is providing accurate temperature readings essential for optimal engine performance and longevity, though it requires a compatible inline adaptor for installation. This sensor is a direct replacement for various Davies Craig cooling system components.
All features
| Model Part Number | 18418 |
|---|---|
| Brand | Davies Craig |
Extended Product Information
FAQs
What does NPT stand for?
NPT stands for National Pipe Thread, a standard for tapered threads used on pipe and fittings.
Is the 1/8" NPT thread the same as the 1/4" NPT thread?
No, they are different thread sizes. The 1/8" NPT is smaller than the 1/4" NPT. This specific sensor uses the 1/8" size.
Do I need an inline adaptor to use this sensor?
Yes, this sensor is designed to be used with an inline adaptor. The adaptor provides the port to thread the sensor into within your cooling system lines.
Can I use this sensor with other brands' controllers?
While the 1/8" NPT thread is a standard, the sensor's electrical characteristics are optimized for Davies Craig controllers. Compatibility with other brands is not guaranteed and should be verified with the controller manufacturer.
Does this sensor come with an inline adaptor?
This product listing is for the sensor only. Inline adaptors are sold separately or may be included as part of a larger Davies Craig kit.
How do I know if I have the 1/8" NPT or 1/4" NPT version?
The product title and description specify the thread size. The 1/4" NPT version is typically supplied with most Davies Craig fan switches and EWP controller kits.
What is the operating temperature range of this sensor?
Specific operating temperature ranges are typically found in the technical specifications of the associated Davies Craig controller or gauge, as the sensor itself is passive.
Troubleshooting
Sensor not providing readings
Check electrical connections to the gauge or controller. Ensure the sensor is properly threaded into the adaptor and the wiring is not damaged. Verify the compatibility of the sensor with your gauge/controller.
Inaccurate temperature readings
Ensure the sensor is fully submerged in coolant flow within the inline adaptor. Check for air pockets around the sensor. Verify that the sensor is correctly calibrated with your monitoring device.
Coolant leak around the sensor
Remove the sensor and re-apply appropriate thread sealant (PTFE tape or liquid sealant rated for coolant) to the threads. Ensure the thread engagement is sufficient. Tighten securely, but do not overtighten.
Pros and Cons
Pros
- Provides accurate coolant temperature readings.
- Designed for easy integration with Davies Craig fan switches and controllers.
- Suitable as a direct spare or replacement part.
- Durable construction for engine bay environments.
- Offers reliable performance for monitoring engine health.
Cons
- Requires a separate inline adaptor for installation (not included unless part of a kit).
- Specific thread size (1/8" NPT) may limit universal application without adapters.
- Primarily designed for Davies Craig systems, potentially limiting compatibility with other brands.
- Sensor data requires a compatible gauge or controller to be utilized.
Setup, Compatibility & Care
Setup: To install the Davies Craig Coolant Temperature Sensor, first ensure the engine is completely cool. Thread the sensor into a compatible 1/8" NPT port on your inline adaptor or cooling system. Use thread sealant (like PTFE tape) suitable for automotive cooling systems to ensure a leak-free seal. Connect the sensor wiring to your corresponding Davies Craig fan switch, EWP controller, or temperature gauge. Refer to the manual of your specific Davies Craig controller or gauge for wiring diagrams.
Compatibility: This sensor is designed to work with inline adaptors and is a direct fit for most Davies Craig fan switches and EWP controller kits that utilize a 1/8" NPT sensor thread. While it has an 1/8" NPT thread, its primary intended use is within the Davies Craig ecosystem. Check your existing system's specifications or the Davies Craig product compatibility chart for confirmation.
Care: The sensor requires minimal care. Periodically inspect the wiring for damage or corrosion. Ensure the connection to the inline adaptor remains secure and free from leaks. No regular maintenance is typically needed for the sensor itself, beyond ensuring it remains clean and free from external debris.