Beck Arnley 158-1797 Engine Coolant Temperature Sensor

OE-Style Coolant Temperature Sensor

Beck Arnley 158-1797 is an engine coolant temperature sensor built for direct replacement on select Toyota and Lexus applications. It is designed around OE form, fit, and function so the sensor installs in the correct location and communicates accurate coolant temperature data to the engine management system.

This part number 158-1797 is a practical choice for drivers servicing a Toyota Camry, Corolla, RAV4, or Lexus UX250h when the original sensor is failing or reading incorrectly.

Key Features

• Direct replacement engine coolant temperature sensor for foreign nameplate applications
• OE-style form, fit, and function for straightforward service replacement
• Built to Beck Arnley specifications for performance and durability
• No wiring harness included
• No thread sealer included
• Part number: 158-1797

Detailed Description

Beck Arnley sources parts through a global network and matches them to the requirements of the original application. That approach helps ensure the sensor fits the intended coolant passage and connects to the vehicle’s temperature monitoring system without unnecessary modification. For Toyota and Lexus models, accurate coolant temperature input is important for fuel control, cooling fan operation, and engine protection strategies.

Compatible With select 2018-2025 Toyota and Lexus vehicles, including 2018-2022 Toyota Camry, 2019-2022 Toyota Corolla, 2019-2024 Lexus UX250h, 2020-2022 Toyota Highlander, 2021-2022 Toyota RAV4, and 2022-2025 Lexus LX600. Additional applications include Toyota Prius, RAV4 Prime, Sienna, Tundra, Venza, Corolla Cross, and Lexus ES, UX, and LX models. Part number 158-1797 is also a fitment match for 2023-2024 Toyota Prius at the water outlet and 2021-2022 Toyota RAV4 at the engine coolant outlet flange.

What It Helps Address

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting, rough running, or poor cold-engine fuel control
• Cooling fan operation that does not match engine temperature
• Check engine light concerns related to coolant temperature sensor performance
• Service replacement for a leaking or degraded original sensor

Installation Notes and Tips

Verify the sensor location before installation, especially on applications noted for the radiator pipe, water outlet, or engine coolant outlet flange. Inspect the connector, sealing surface, and coolant condition before installing the new sensor. Because no wiring harness or thread sealer is included, reuse or replace those items as needed based on the vehicle service procedure.

Quality Assurance

Beck Arnley parts are specified as OE-style replacements for foreign nameplate vehicles, with attention to form, fit, and function. The brand’s sourcing and specification process is intended to deliver a dependable replacement part that meets the application requirements for the listed Toyota and Lexus models.