Davies Craig - Transmission Temperature Gauge Sensor In-Line Adaptor - 1/4'' NPT

This universal adaptor is designed to fit in the hot side of a transmission oil cooler pipe and pr...

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Product Information

Full details

This Davies Craig in-line adaptor is for automotive enthusiasts and mechanics needing to accurately monitor transmission oil temperature, especially in custom builds or tight spaces. Its key benefit is providing a convenient, secure port for a temperature sensor directly in the hot side of the transmission oil cooler line, offering crucial data for performance tuning and longevity. A caveat is that the temperature sensor itself is not included and must be purchased separately.

All features

Model Part Number1007
BrandDavies Craig

Extended Product Information

FAQs

What size temperature sensor does this adaptor accept?

The adaptor has a 1/4" NPT female thread port, which is a standard size for many automotive temperature sensors.

Does this adaptor come with a temperature sensor?

No, the temperature sensor is not included. You will need to purchase a compatible 1/4" NPT sensor separately.

What size oil cooler hose will this adaptor fit?

It is designed to fit oil cooler pipes with a 3/8" (10mm) internal bore.

Can I install this on any transmission line?

It is specifically designed for the hot side of the transmission oil cooler line to provide accurate temperature readings. Ensure your hose size matches the 3/8" (10mm) bore requirement.

What kind of thread sealant should I use for the sensor?

Use a high-quality thread sealant designed for automotive applications, resistant to heat and transmission fluid.

Is professional installation recommended?

While installation is straightforward for those with basic mechanical experience, professional installation is recommended if you are unsure about any step, especially regarding hose clamping and sealing to prevent leaks.

Troubleshooting

Adaptor leaks oil

Ensure hose clamps are tightened securely. Check for any nicks or damage on the oil cooler pipe where it meets the adaptor. Reapply thread sealant to the sensor port if the leak is from the sensor threads. Verify the correct hose size compatibility.

Temperature sensor reading is inaccurate or zero

Verify the sensor is correctly threaded into the adaptor. Check sensor wiring to your gauge/logger for proper connections and continuity. Ensure the sensor itself is functional and compatible with the gauge.

Difficulty fitting hose onto adaptor

Confirm the oil cooler pipe's internal bore is exactly 3/8" (10mm). Slightly warming the hose end with a heat gun (use caution) can sometimes make it more pliable. Ensure no obstructions are within the adaptor's hose barb area.

Pros and Cons

Pros

  • Provides a dedicated, easy-to-access port for transmission temperature sensors.
  • Universal design accommodates common oil cooler pipe sizes.
  • Enables crucial temperature monitoring for transmission health and performance.
  • Compact design suitable for tight engine bay installations.
  • Helps prevent costly transmission damage due to overheating.

Cons

  • Temperature sensor is not included and must be purchased separately.
  • Requires basic mechanical knowledge for installation.
  • Potential for leaks if not installed with proper sealing techniques.
  • Only compatible with oil cooler pipes of a specific bore size (3/8" or 10mm).

Setup, Compatibility & Care

Compatibility: This adaptor is designed for oil cooler pipes with a 3/8" (10mm) internal bore. Ensure your transmission oil cooler line matches this dimension before purchase. The sensor port accepts standard 1/4" NPT female threaded temperature sensors.

Setup:

  1. Safety First: Ensure the vehicle is safely supported and the engine/transmission is cool.
  2. Locate Line: Identify the hot side transmission oil cooler line (typically the line returning oil to the transmission from the cooler).
  3. Cut and Insert: Carefully cut the identified hose. Insert the adaptor into the hose, ensuring the flow direction is correct if marked. Use appropriate hose clamps (not included) to secure both ends of the adaptor to the hose.
  4. Install Sensor: Thread your 1/4" NPT temperature sensor into the adaptor port. Use thread sealant suitable for high temperatures and oil.
  5. Connect Sensor: Wire the temperature sensor to your chosen gauge or data logger according to the sensor and gauge manufacturer's instructions.
  6. Check for Leaks: Start the engine and allow it to warm up. Inspect the adaptor connections thoroughly for any signs of leaks.

Care: No specific maintenance is required for the adaptor itself. Regularly check the hose connections for security and the sensor for proper function. Ensure the temperature sensor is kept clean and functional.

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