Standard Ignition TX273 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Toyota and Lexus

Standard Ignition TX273 is an engine coolant temperature sensor built for direct-fit service on select Toyota and Lexus applications. It uses a bolt-on attachment, a single square plug-in connector, and a 2-pin male terminal layout for straightforward replacement of the original sensor.

Use TX273 when servicing cooling-system temperature input on vehicles such as the Toyota Camry, Tacoma, Highlander, Prius, and Lexus RX350. This part number is also referenced as TX273 in interchange listings for the same application.

Key Features

• Bolt-on attachment method for secure mounting
• Single female connector with square plug-in design
• 2-pin male terminal configuration
• Black and bronze finish with plastic and metal construction
• 1-port sensor design for coolant temperature monitoring
• Cross-references Beck/Arnley 158-1802 for the same application

Detailed Description

Standard Ignition TX273 is an engine coolant temperature sensor used to report coolant temperature data to the engine control system. Accurate temperature input supports proper fuel delivery, idle control, and cooling-fan operation. The sensor’s bolt-on mounting style and plug-in electrical connection make it a direct replacement option for a wide range of Toyota and Lexus models, including Corolla, Camry, Tacoma, Highlander, Prius, Sienna, Avalon, and Lexus RX and GS applications. Standard Ignition TX273 is also listed under interchange part numbers used across the aftermarket.

What It Helps Address

• Incorrect coolant temperature readings
• Check engine light concerns related to temperature sensor input
• Hard starting or rough idle tied to inaccurate engine temperature data
• Cooling fan operation issues caused by faulty sensor signals
• Driveability problems after coolant temperature sensor failure

Installation Notes and Tips

Confirm connector shape, terminal count, and mounting style before installation. This sensor is listed for multiple positions, including engine block and water outlet locations depending on vehicle application, so match the original sensor location on the vehicle. Verify fitment by year, make, model, and engine configuration before replacing the part. For best results, inspect the connector and wiring for corrosion or damage during service.

Quality Assurance

Standard Ignition supplies replacement electrical and engine management components for OE-style service applications. TX273 is built to match the listed connector and mounting specifications for the confirmed Toyota and Lexus fitments.

Compatible With

• Fits 2018-2026 Lexus IS350, N/A
• Fits 2018-2025 Lexus IS300, N/A
• Fits 2018-2025 Lexus LC500h, N/A
• Fits 2020-2025 Lexus RC350, N/A
• Fits 2023-2025 Lexus RX500h, Engine Block, On Side of Block
• Fits 2021-2025 Toyota Corolla, N/A
• Fits 2020-2025 Toyota Mirai, N/A
• Fits 2018-2024 Toyota Camry, N/A
• Fits 2016-2023 Toyota Tacoma, N/A
• Fits 2016-2022 Lexus RX350, N/A
• Fits 2018-2022 Lexus RX350L, N/A
• Fits 2016-2022 Lexus RX450h, N/A
• Fits 2018-2022 Lexus RX450hL, N/A
• Fits 2021-2022 Toyota Avalon, N/A
• Fits 2016-2022 Toyota Highlander, N/A
• Fits 2019-2022 Toyota Prius AWD-e, Engine Block, Front
• Fits 2021-2022 Toyota Prius Prime, Engine Block, Front
• Fits 2016-2020 Lexus GS350, N/A
• Fits 2019-2020 Toyota Avalon, N/A, Located On Water Outlet
• Fits 2018-2020 Toyota Prius, N/A
• Fits 2017-2020 Toyota Prius Prime, N/A
• Fits 2017-2020 Toyota Sienna, N/A
• Fits 2018 Lexus LC500, N/A
• Fits 2016-2017 Lexus GS450h, N/A
• Fits 2016-2017 Toyota Prius, N/A, w/ Black Connector