HomeBelts and Cooling > SensorsStandard Ignition TX338 Engine Coolant Temperature Sensor
Part #: TX338

Standard Ignition TX338 Engine Coolant Temperature Sensor

12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, BRZ, Crosstrek, and Forester
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Engine Coolant Temperature Sensor for Subaru

Standard Ignition TX338 is an engine coolant temperature sensor built with a screw-in attachment method and a 12-volt electrical design. It uses a female connector with one round/square plug-socket interface, two male blade terminals, and a brass/plastic construction with gold and white finish details.

Key Features

  • Screw-in engine coolant temperature sensor design
  • Female connector with 1 connector interface
  • 2 male blade terminals for electrical connection
  • Brass and plastic finish materials
  • 12-volt sensor configuration
  • Standard Ignition TX338 replacement part

Detailed Description

Standard Ignition TX338 is an engine coolant temperature sensor used to monitor coolant temperature and send that information to the vehicle’s engine management system. Accurate coolant temperature input is important for fuel delivery, idle control, and temperature-related engine operation. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. It fits 2022-2023 Subaru BRZ, 2018-2023 Subaru Crosstrek, and 2019-2022 Subaru Forester, making it a direct-fit option for Subaru BRZ, Subaru Crosstrek, and Subaru Forester service needs.

Common Issues It May Address

  • Incorrect coolant temperature readings
  • Check engine light related to temperature sensor input
  • Rough idle caused by inaccurate engine temperature data
  • Hard starting or fuel mixture concerns tied to coolant temperature reporting
  • Cooling system diagnostics that require a replacement sensor

Installation Notes and Tips

TX338 installs with a screw-in mounting style. Before installation, confirm connector shape, terminal style, and thread engagement match the original sensor on the vehicle. Verify the electrical connector is clean and secure, and inspect the cooling system for leaks or contamination that could affect sensor performance. Fits 2022-2023 Subaru BRZ, 2018-2023 Subaru Crosstrek, and 2019-2022 Subaru Forester in the listed applications.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for replacement electrical and engine management components. TX338 is built to match the listed connector, terminal, and mounting specifications for the confirmed Subaru applications.

BrandStandard Ignition
Part NumberTX338
Attachment MethodScrew-in
Color/FinishGold, white
Connector GenderFemale
Connector Quantity1
Connector ShapeRound, square
Connector TypePlug; socket
FinishBrass, plastic
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Voltage12

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023SubaruBRZ2.4LH4N/A
2023SubaruCrosstrekN/A
2022SubaruBRZ2.4LH4N/A
2022SubaruCrosstrekN/A
2022SubaruForesterN/A
2021SubaruCrosstrekN/A
2021SubaruForesterN/A
2020SubaruCrosstrekN/A
2020SubaruForesterN/A
2019SubaruCrosstrekN/A
2019SubaruForesterN/A
2018SubaruCrosstrekN/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:

22630AA2705S17605TS5649TX338WT5098

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