Holstein 2CTS0091 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Hyundai and Kia

Holstein Parts 2CTS0091 is an engine coolant temperature sensor for a wide range of Hyundai, Kia, and Genesis applications. It provides the temperature signal the engine control system uses to manage fuel delivery, idle quality, and cooling strategy.

Key Features

• Engine coolant temperature sensor for OE-style replacement
• Fits many Hyundai Elantra, Sonata, Tucson, and Accent applications
• Also fits Kia Forte, Soul, Optima, Rio, and Sorento models
• Cross-references Delphi TS10326 and Standard Ignition TX122 for the same application
• Holstein Parts 2CTS0091 for direct-fit service on supported vehicles

Detailed Description

Holstein Parts 2CTS0091 is built for vehicles that rely on accurate coolant temperature input to help the engine computer respond correctly during warm-up and normal operation. This sensor is used across many Hyundai and Kia platforms, including Hyundai Elantra, Sonata, Tucson, Veloster, and Accent, as well as Kia Forte, Soul, Optima, Rio, and Sorento. It also covers select Genesis G70, G80, and G90 applications.

This part cross-references Delphi TS10326 and Standard Ignition TX122 for the same application. If you are replacing a faulty coolant temp sensor on a Hyundai Tucson, Kia Forte, or Hyundai Elantra, 2CTS0091 is a direct-fit service part for the listed vehicles.

What It Helps Solve

• Incorrect coolant temperature readings
• Hard starting or rough cold operation
• Unstable idle after warm-up
• Cooling fan control concerns tied to temperature input
• Check engine light conditions related to coolant temperature sensor faults

Installation Notes and Tips

Verify the connector style and engine application before installation, especially on models with notes such as Atkinson Engine Package, 3 Blade Terminal, or specific build-date requirements. Confirm the vehicle year, make, and model against the fitment list before ordering. For best results, inspect the connector and wiring for corrosion or damage during replacement.

Quality Assurance

Holstein Parts 2CTS0091 is cataloged for broad OE-style fitment across supported Hyundai, Kia, and Genesis vehicles, with application coverage spanning 2000-2025 model years.