Standard Ignition TX259 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for OE Fit

Standard Ignition TX259 is a direct-fit engine coolant temperature sensor built to restore accurate temperature readings in the engine management system. It is a practical replacement for Chrysler, Dodge, Jeep, and Ram applications that rely on precise coolant data for proper operation.

• Direct-fit OE replacement for proper fit, form, and function
• Copper alloy conductors for strong electrical conductivity and low resistive loss
• Engineered output curves to help prevent temperature misreading
• Screw-on attachment method
• Female rectangular plug-in connector with 2 male blade terminals
• Black and gold color with brass and plastic finish

Fitment and Application Details

Fits 2014-2023 Chrysler 300, located on cylinder head. Fits 2014-2019 Dodge Charger, located on cylinder head. Fits 2014-2022 Jeep Cherokee, located on cylinder head. Fits 2015-2018 Ram 1500, located on cylinder head. This part also fits additional Chrysler, Dodge, Jeep, and Ram applications listed in the fitment data, including 2014-2017 Jeep Wrangler and 2014-2017 Ram ProMaster vans.

Use Standard Ignition TX259 when replacing a faulty engine coolant temperature sensor on vehicles such as the Chrysler 300, Dodge Charger, or Jeep Cherokee. This sensor cross-references Mopar 68164627AA for the same application.

What This Sensor Helps Address

• Inaccurate coolant temperature readings on the dash or scan tool
• Hard starting or rough running related to incorrect temperature input
• Cooling fan operation problems caused by bad temperature data
• Check engine lights tied to coolant temperature sensor faults
• Driveability issues from an engine control module receiving incorrect temperature signals

Installation Notes

Verify connector style, terminal count, and mounting location before installation. This sensor is listed for cylinder head mounting on most applications, with one 2014 Ram 1500 application noted on the engine. Clean the sealing surface and inspect the harness connector for corrosion or damaged terminals before connecting the new sensor.

Quality Assurance

Standard Ignition designs this sensor as an OE-style replacement and controls manufacturing quality throughout the production process. The component is built to meet the electrical performance and output curve requirements needed for accurate coolant temperature reporting.