Standard Ignition TX359 Engine Coolant Temperature Sensor - Engine Block

Engine Coolant Temperature Sensor for Hyundai and Kia

Standard Ignition TX359 is an engine coolant temperature sensor built for direct engine block mounting on select Hyundai and Kia applications. It uses a bolt-on attachment, a single oval plug-in connector, and a 2-blade male terminal layout for a straightforward OE-style electrical connection.

Compatible with 2020-2025 Hyundai Sonata, 2021-2025 Hyundai Elantra, 2021-2025 Hyundai Kona, 2025 Kia K4, and 2023-2025 Kia Sportage, this TX359 coolant temperature sensor supports accurate engine temperature signal input for the vehicle’s control systems.

Key Features

• Engine coolant temperature sensor for engine block mounting
• Bolt-on attachment method for secure installation
• Female oval connector with plug-in type connection
• 1 connector, 1 port, and 2 male blade terminals
• Metal and plastic construction with black and silver finish
• Direct-fit application for select Hyundai and Kia models

Detailed Description

Standard Ignition TX359 is an engine coolant temperature sensor designed for vehicles that rely on a precise coolant temperature signal to manage engine operation. The sensor mounts on the engine block, on the side of the block, and uses a single oval connector with blade terminals to match the listed applications. For buyers searching for a Hyundai Sonata coolant temperature sensor, Hyundai Elantra engine block sensor, or Kia Sportage coolant temperature sensor, TX359 provides a fitment-specific replacement option.

This part cross-references Walker Products 211-2068 for the same application. Standard Ignition TX359 also interchanges with OE and aftermarket references used on the listed Hyundai and Kia vehicles.

Common Issues This Sensor Can Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough running related to temperature signal errors
• Cooling fan operation that does not match engine temperature
• Fuel mixture or idle control concerns tied to coolant temperature input
• Check engine light conditions related to coolant temperature sensor faults

Installation Notes and Tips

Verify connector shape, terminal style, and engine block mounting location before installation. This TX359 sensor uses a female oval plug-in connector with 2 male blade terminals and a bolt-on attachment method, so matching the original connector and mounting point is important for proper fitment. Confirm the vehicle application by year, make, and model before ordering.

• Fits 2021-2025 Hyundai Elantra, Engine Block, On Side of Block
• Fits 2021-2025 Hyundai Kona, Engine Block, On Side of Block
• Fits 2020-2025 Hyundai Sonata, Engine Block, On Side of Block
• Fits 2025 Kia K4, Engine Block, On Side of Block
• Fits 2023-2025 Kia Sportage, Engine Block, On Side of Block

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TX359 is built with metal and plastic materials and is specified for the listed OE-style applications on Hyundai and Kia vehicles.