Standard Ignition TX257 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Accurate Cooling System Input

Standard Ignition TX257 is a screw-in engine coolant temperature sensor built with a metal and plastic finish, a rectangular plug-in connector, and two blade terminals. It is used to report coolant temperature to the engine management system, helping maintain proper fuel control and temperature-based operation.

Compatible With applications that use a female, 1-port coolant temperature sensor with a screw-in attachment and green/gold housing details, this Standard Ignition TX257 replacement supports direct sensor service on select vehicles, including Honda Civic and Toyota Camry applications where this style is specified.

Key Features

• Screw-in engine coolant temperature sensor design
• Rectangular plug-in connector with female terminal interface
• 1 connector, 1 port, and 2 blade terminals
• Metal and plastic construction with green and gold finish
• Standard Ignition TX257 replacement part number

Detailed Description

The TX257 is an engine coolant temperature sensor that threads into the cooling system and sends temperature data to the vehicle control system. That signal is used for fuel delivery, idle strategy, and temperature-related engine management decisions. This part cross-references 133877 and TS5867 for the same application.

For fitment-based searches, this sensor is a direct-match style option for drivers looking for an engine coolant temperature sensor for Honda Civic or Toyota Camry service where the original sensor uses a screw-in mount, rectangular plug, and two blade terminals. Standard Ignition TX257 is also a useful reference when searching by part number TX257.

Common Issues This Sensor Can Address

• Incorrect coolant temperature readings at the engine control system
• Hard starting or rough cold operation tied to temperature signal errors
• Cooling fan or gauge behavior affected by a faulty sensor signal
• Check engine light conditions related to coolant temperature input
• Fuel mixture or idle concerns caused by inaccurate temperature data

Installation Notes and Tips

Confirm the connector shape, terminal count, and screw-in mounting style before installation. Inspect the sensor port and sealing surface for corrosion or debris, and verify the replacement matches the original electrical connection and thread style. Use the vehicle service procedure for coolant level checks and system bleeding after replacement.

Quality Assurance

Standard Ignition TX257 is built as a replacement engine coolant temperature sensor for applications that require this connector and mounting configuration. Verify fitment by year, make, model, and sensor style before ordering.