HomeBelts and Cooling > SensorsStandard Ignition TX308 Engine Coolant Temperature Sensor
Part #: TX308

Standard Ignition TX308 Engine Coolant Temperature Sensor

⚙️ 47 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3, 6, CX-3, CX-30, CX-5, CX-9, and MX-5 Miata
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Engine Coolant Temperature Sensor for Mazda Vehicles

The Standard Ignition TX308 Engine Coolant Temperature Sensor is designed to provide accurate temperature readings for your Mazda 3, 6, CX-3, CX-5, CX-9, CX-30, and MX-5 Miata. This sensor ensures your engine management system receives precise data to maintain optimal engine performance and prevent overheating.

  • Push-on attachment method for secure and easy installation
  • Durable brass finish with gold and white color accents
  • Female rectangular plug-in connector with one connector for reliable electrical connection
  • Two male blade terminals for consistent signal transmission
  • Operates on standard 12-volt electrical systems

Detailed Product Features and Specifications

The TX308 Engine Coolant Temperature Sensor from Standard Ignition features a push-on attachment method that simplifies installation and ensures a firm fit within the cooling system. Its brass finish offers corrosion resistance, while the gold and white color scheme aids in identification during maintenance. The sensor includes a female rectangular plug-in connector with a single connection point, designed to interface seamlessly with the vehicle’s wiring harness. Two male blade terminals provide a stable electrical connection, supporting accurate temperature signal transmission to the engine control unit. This sensor is engineered to operate on a 12-volt system, compatible with the electrical architecture of Mazda models including the 3, 6, CX-3, CX-5, CX-9, CX-30, and MX-5 Miata.

Compatible Mazda Models and Applications

This engine coolant temperature sensor is compatible with a range of Mazda vehicles, specifically the Mazda 3, Mazda 6, CX-3, CX-5, CX-9, CX-30, and MX-5 Miata. The TX308 sensor is designed to meet the exact specifications required by these models, ensuring proper fitment and reliable operation within the engine cooling system.

Common Issues Addressed by the TX308 Sensor

  • Engine overheating due to inaccurate temperature readings
  • Erratic engine temperature gauge behavior
  • Poor engine performance caused by incorrect coolant temperature data
  • Check engine light triggered by faulty temperature sensor signals
  • Fuel efficiency problems related to improper engine temperature monitoring

Installation Notes and Tips

When installing the Standard Ignition TX308 sensor, ensure the engine is cool to avoid burns or injury. The push-on attachment method allows for straightforward replacement without the need for specialized tools. Verify the connector is fully seated and the blade terminals are clean and free of corrosion to maintain optimal electrical contact. It is recommended to inspect the surrounding wiring harness for damage during installation to prevent future sensor issues.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The TX308 Engine Coolant Temperature Sensor undergoes rigorous quality control testing to ensure consistent operation. This part is backed by Standard Ignition’s limited warranty, covering defects in material and workmanship under normal use conditions.

BrandStandard Ignition
Part NumberTX308
Attachment MethodPush On
ColorGold, White
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
FinishBrass
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 47 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025Mazda3N/A
2025MazdaCX-5N/A
2025MazdaMX-5 MiataN/A
2024Mazda3N/A
2024MazdaCX-5N/A
2024MazdaMX-5 MiataN/A
2023Mazda3N/A
2023MazdaCX-302.5LL4N/A
2023MazdaCX-5N/A
2023MazdaCX-9N/A
2023MazdaMX-5 MiataN/A
2022Mazda3N/A
2022MazdaCX-5N/A
2022MazdaCX-9N/A
2022MazdaMX-5 MiataN/A
2021Mazda3N/A
2021Mazda6N/A
2021MazdaCX-3N/A
2021MazdaCX-302.5LL4N/A
2021MazdaCX-5N/A
2021MazdaCX-9N/A
2021MazdaMX-5 MiataN/A
2020Mazda3N/A
2020Mazda6N/A
2020MazdaCX-3N/A
2020MazdaCX-302.5LL4N/A
2020MazdaCX-5N/A
2020MazdaCX-9N/A
2020MazdaMX-5 MiataN/A
2019Mazda3N/A
2019Mazda6N/A
2019MazdaCX-3N/A
2019MazdaCX-5N/A
2019MazdaCX-9N/A
2019MazdaMX-5 MiataN/A
2018Mazda6N/A
2018MazdaCX-3N/A
2018MazdaCX-5N/A
2018MazdaCX-9N/A
2018MazdaMX-5 MiataN/A
2017MazdaCX-3N/A
2017MazdaCX-5N/A
2017MazdaCX-9N/A
2017MazdaMX-5 MiataN/A
2016MazdaCX-3N/A
2016MazdaCX-9N/A
2016MazdaMX-5 MiataN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

CTSA171SH0118840TS5918WT5318WTC2197

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.