HomeBelts and Cooling > SensorsStandard Ignition TX273 Engine Coolant Temperature Sensor
Part #: TX273

Standard Ignition TX273 Engine Coolant Temperature Sensor

⚙️ 122 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$22.86Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, GS350, LC500h, RX350, RX450h, Prius, Prius Prime, Sienna, Tacoma, Highlander, LC500, and GS450h
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition TX273 Engine Coolant Temperature Sensor

The Standard Ignition TX273 Engine Coolant Temperature Sensor is designed for precise temperature monitoring in various Lexus and Toyota vehicles. This sensor helps maintain optimal engine performance by providing accurate coolant temperature data to the engine control unit.

  • Compatible with Lexus and Toyota models including Avalon, Camry, Corolla, GS350, GS450h, Highlander, IS300, IS350, LC500, LC500h, Mirai, Prius, Prius AWD-e, Prius Prime, RX350, RX450h, Sienna, and Tacoma
  • Direct replacement part number TX273 for easy identification and fitment
  • Engine coolant temperature sensor type for reliable temperature measurement
  • Designed to meet OEM specifications for consistent performance

Product Details and Functionality

The TX273 sensor from Standard Ignition accurately measures the temperature of the engine coolant and sends this information to the vehicle’s engine control module (ECM). This data is critical for regulating fuel injection, ignition timing, and emission controls. Proper coolant temperature readings help prevent engine overheating and improve fuel efficiency. The sensor is engineered to fit a wide range of Lexus and Toyota models, ensuring compatibility and ease of installation.

Common Applications and Problem Resolution

  • Helps resolve engine overheating issues by providing accurate temperature data
  • Prevents poor fuel economy caused by incorrect coolant temperature readings
  • Addresses rough idling or engine stalling related to faulty temperature sensors
  • Eliminates check engine light triggers associated with coolant temperature sensor faults
  • Supports proper operation of the vehicle’s cooling fan system

Installation Notes and Tips

Installation of the Standard Ignition TX273 sensor requires locating the existing engine coolant temperature sensor on the engine block or cylinder head. It is recommended to allow the engine to cool before removal to avoid burns. Use appropriate tools to disconnect the electrical connector and remove the old sensor. Apply thread sealant if specified by the vehicle manufacturer and install the new sensor securely. After installation, clear any diagnostic trouble codes and verify sensor operation through engine diagnostics.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The TX273 Engine Coolant Temperature Sensor undergoes rigorous quality control testing to maintain consistency. This part typically includes a limited warranty covering defects in material and workmanship, providing confidence in its long-term use.

BrandStandard Ignition
Part NumberTX273
Attachment MethodBolt On
Connector GenderFemale
Connector ShapeSquare
Connector TypePlug In
Terminal GenderMale
Terminal TypePin

This part fits 122 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2026LexusIS3503.5LV6GASN/A
2025LexusIS3003.5LV6GASN/A
2025LexusIS3503.5LV6GASN/A
2025LexusLC500hN/A
2025LexusRC3503.5LV6GASN/A
2025LexusRX500h2.4LL4FULL HYBRID EV-GAS (FHEV)Engine BlockOn Side of Block
2025ToyotaCorolla1.8LL4FULL HYBRID EV-GAS (FHEV)N/A
2025ToyotaMiraiFUEL CELL EV (FCEV)N/A
2024LexusIS3003.5LV6GASN/A
2024LexusIS3503.5LV6GASN/A
2024LexusLC500hN/A
2024LexusRC3503.5LV6GASN/A
2024LexusRX500h2.4LL4FULL HYBRID EV-GAS (FHEV)Engine BlockOn Side of Block
2024ToyotaCamry3.5LV6N/A
2024ToyotaCorolla1.8LL4FULL HYBRID EV-GAS (FHEV)N/A
2024ToyotaMiraiFUEL CELL EV (FCEV)N/A
2023LexusIS3003.5LV6GASN/A
2023LexusIS3503.5LV6GASN/A
2023LexusLC500hN/A
2023LexusRC3503.5LV6GASN/A
2023LexusRX500h2.4LL4FULL HYBRID EV-GAS (FHEV)Engine BlockOn Side of Block
2023ToyotaCamry3.5LV6GASN/A
2023ToyotaCorolla1.8LL4FULL HYBRID EV-GAS (FHEV)N/A
2023ToyotaMiraiFUEL CELL EV (FCEV)N/A
2023ToyotaTacoma3.5LV6N/A
2022LexusIS3003.5LV6GASN/A
2022LexusIS3503.5LV6GASN/A
2022LexusLC500hN/A
2022LexusRC3503.5LV6GASN/A
2022LexusRX350N/A
2022LexusRX350L3.5LV6N/A
2022LexusRX450hN/A
2022LexusRX450hL3.5LV6FULL HYBRID EV-GAS (FHEV)N/A
2022ToyotaAvalon2.5LL4FULL HYBRID EV-GAS (FHEV)N/A
2022ToyotaCamry3.5LV6GASN/A
2022ToyotaCorolla1.8LL4FULL HYBRID EV-GAS (FHEV)N/A
2022ToyotaHighlander3.5LV6N/A
2022ToyotaMiraiFUEL CELL EV (FCEV)N/A
2022ToyotaPrius AWD-e1.8LL4Engine BlockFront
2022ToyotaPrius PrimeEngine BlockFront
2022ToyotaTacoma3.5LV6N/A
2021LexusIS3003.5LV6GASN/A
2021LexusIS3503.5LV6GASN/A
2021LexusLC500hN/A
2021LexusRC3503.5LV6GASN/A
2021LexusRX350N/A
2021LexusRX350L3.5LV6N/A
2021LexusRX450hN/A
2021LexusRX450hL3.5LV6FULL HYBRID EV-GAS (FHEV)N/A
2021ToyotaAvalon2.5LL4FULL HYBRID EV-GAS (FHEV)N/A
2021ToyotaCamry3.5LV6GASN/A
2021ToyotaCorolla1.8LL4FULL HYBRID EV-GAS (FHEV)N/A
2021ToyotaHighlander3.5LV6N/A
2021ToyotaMiraiFUEL CELL EV (FCEV)N/A
2021ToyotaPrius AWD-e1.8LL4Engine BlockFront
2021ToyotaPrius PrimeEngine BlockFront
2021ToyotaTacoma3.5LV6N/A
2020LexusGS350N/A
2020LexusIS3003.5LV6GASN/A
2020LexusIS3503.5LV6GASN/A
2020LexusLC500hN/A
2020LexusRC3503.5LV6GASN/A
2020LexusRX350N/A
2020LexusRX350L3.5LV6N/A
2020LexusRX450hN/A
2020LexusRX450hL3.5LV6FULL HYBRID EV-GAS (FHEV)N/A
2020ToyotaAvalon2.5LL4N/ALocated On Water Outlet
2020ToyotaCamry3.5LV6GASN/A
2020ToyotaHighlander3.5LV6N/A
2020ToyotaMiraiFUEL CELL EV (FCEV)N/A
2020ToyotaPriusN/A
2020ToyotaPrius AWD-e1.8LL4Engine BlockFront
2020ToyotaPrius PrimeN/A
2020ToyotaSiennaN/A
2020ToyotaTacoma3.5LV6N/A
2019LexusGS350N/A
2019LexusIS3003.5LV6GASN/A
2019LexusIS3503.5LV6GASN/A
2019LexusLC500hN/A
2019LexusRX350N/A
2019LexusRX350L3.5LV6N/A
2019LexusRX450hN/A
2019LexusRX450hL3.5LV6FULL HYBRID EV-GAS (FHEV)N/A
2019ToyotaAvalon2.5LL4N/ALocated On Water Outlet
2019ToyotaCamry3.5LV6GASN/A
2019ToyotaHighlander3.5LV6N/A
2019ToyotaPriusN/A
2019ToyotaPrius AWD-e1.8LL4Engine BlockFront
2019ToyotaPrius PrimeN/A
2019ToyotaSiennaN/A
2019ToyotaTacoma3.5LV6N/A
2018LexusGS350N/A
2018LexusIS3003.5LV6GASN/A
2018LexusIS3503.5LV6GASN/A
2018LexusLC500N/A
2018LexusLC500hN/A
2018LexusRX350N/A
2018LexusRX350L3.5LV6N/A
2018LexusRX450hN/A
2018LexusRX450hL3.5LV6FULL HYBRID EV-GAS (FHEV)N/A
2018ToyotaCamry3.5LV6GASN/A
2018ToyotaHighlander3.5LV6N/A
2018ToyotaPriusN/A
2018ToyotaPrius PrimeN/A
2018ToyotaSiennaN/A
2018ToyotaTacoma3.5LV6N/A
2017LexusGS350N/A
2017LexusGS450hN/A
2017LexusRX350N/A
2017LexusRX450hN/A
2017ToyotaHighlander3.5LV6N/A
2017ToyotaPriusN/Aw/ Black Connector
2017ToyotaPrius PrimeN/A
2017ToyotaSiennaN/A
2017ToyotaTacoma3.5LV6N/A
2016LexusGS350N/A
2016LexusGS450hN/A
2016LexusRX350N/A
2016LexusRX450hN/A
2016ToyotaHighlander3.5LV6N/A
2016ToyotaPriusN/Aw/ Black Connector
2016ToyotaTacoma3.5LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

8942247010CTSA194TS5883WT5283WTC2071

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.