If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Included warranty:
For warranty coverage information, please see our
Warranty Policy.
Walker Products Engine Coolant Temperature Sensors are designed to provide the engine control module (ECM) with real-time temperature data from the cooling system. This information is essential for proper fuel injection, ignition timing, cold start enrichment, and fan operation. An accurate reading from the coolant temperature sensor allows the ECM to optimize engine performance, fuel economy, and emissions. Each Walker sensor is engineered to match OE specifications for resistance values, thermal response, and signal output, ensuring reliable integration with factory systems. Built with durable, heat-resistant materials, these sensors are made to withstand constant exposure to coolant, vibration, and extreme temperature swings. A direct-fit design ensures easy installation with no modifications required. Whether replacing a failed sensor or addressing a check engine light, Walker Products delivers the quality and accuracy technicians trust.
Characteristics include:
Monitors engine coolant temperature to optimize fuel delivery and ignition timing.
Durable materials ensure long service life in hot, high-vibration environments.
Direct-fit replacement simplifies installation and restores sensor function.
Enables ECM to protect engine from overheating and improve cold starts.
Built to match OE specifications for signal response and thermal accuracy.
Some of the interchangeable part numbers are:
4138 | 1TS1177 | TX280 | WT5290 | 89422WB001
Customer Video Reviews
Watch genuine customer videos showing their upgrades and honest results of similar products
Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
2019
Toyota
Yaris
1.5L
Inline engine
4 cylinders
2.93" bore
3.38" stroke
Location-Engine Block
2018
Toyota
Yaris iA
1.5L
Inline engine
4 cylinders
2.93" bore
3.38" stroke
Location-Engine Block
2017
Toyota
Yaris iA
1.5L
Inline engine
4 cylinders
2.93" bore
3.38" stroke
Location-Engine Block
2016
Scion
iA
1.5L
Inline engine
4 cylinders
2.93" bore
3.38" stroke
Location-Engine Block
See what other customers say:
Customer Reviews
Overall rating: 4.8 / 5 from 697 reviews.
Exact parts came in two days.
Already on Car, thus no pics.
This my second time buying from Partspionner.ca great parts quality parts fast shipping to your door no need to wait on parts counter for minutes save gas ;)
I had an excellent experience ordering from Parts Pioneer, my order was placed and shipped quickly and received. Excellent customer service, I will definitely use them again when needed and let many of my friends know about Part's Pioneer
The site was very easy to use. When I emailed with a question the response came quickly. I appreciated that you verified that the parts would fit my vehicle. I will use the site again.