Standard Ignition TX372 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mazda 3

Standard Ignition TX372 is an engine coolant temperature sensor built for direct plug-in service on the 2018 Mazda 3. It uses a female connector with a polygon shape, a single port, and two male blade terminals to match the vehicle’s electrical connection requirements.

Key Features

• Engine coolant temperature sensor for cooling system temperature monitoring
• Plug-in attachment method for straightforward electrical connection
• Female connector with 1 connector and 2 male blade terminals
• Black and bronze metal/plastic construction
• Direct fit for 2018 Mazda 3, water temp sensor application
• Standard Ignition TX372 part number for catalog matching and replacement lookup

Detailed Description

Standard Ignition TX372 is an OE-style engine coolant temperature sensor used to report coolant temperature to the vehicle control system. On the 2018 Mazda 3, this water temp sensor helps the engine management system interpret operating temperature for fuel control, cooling fan strategy, and temperature-related diagnostics. The plug-in design, female connector, and blade-terminal layout support a direct replacement installation when the original sensor matches this configuration. Standard Ignition TX372 is also referenced by cross numbers CTSA365 and PE1818840 for the same application.

What It Helps Resolve

• Incorrect coolant temperature readings
• Temperature-related warning lights or diagnostic trouble codes
• Cooling fan operation concerns tied to sensor input
• Hard starting or drivability issues related to inaccurate engine temperature data
• Replacement needs for a worn or failed water temp sensor on a Mazda 3

Installation Notes and Tips

Verify connector shape, terminal style, and port configuration against the original sensor before installation. Inspect the harness connector for corrosion, bent terminals, or damaged locking tabs, and confirm the cooling system is at a safe temperature before removing the old sensor. For 2018 Mazda 3 service, match the existing water temp sensor location and electrical interface to Standard Ignition TX372.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TX372 is cataloged as an engine coolant temperature sensor for the 2018 Mazda 3, supporting accurate part lookup and application matching.