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Walker 250-241297 Oxygen Sensor - Downstream
| Brand | Walker 250-241297 |
|---|---|
| Position | Downstream |
| Heated | Yes |
| Sensor Type | Narrow-band |
| Terminal Type | Spade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Shape | Square |
| Terminal Quantity | 4 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Wrench Size | 22 |
| Thread Size | M18 - 1.5 |
| Product line | OE Base Sensor |
| Fits | Hyundai and Kia · 9 vehicles |
OE base sensor. Engineered as an original-equipment replacement.
Heated narrow-band design. Delivers the diagnostic feedback the ECU needs.
Square female connector. Uses a 4-wire, 4-terminal spade connection.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
OE Base Oxygen Sensor for Downstream Use
Walker OE Base Sensor 250-241297 is a specific-fit, heated narrow-band oxygen sensor built for downstream placement and direct ECU feedback. It is engineered for vehicles that need accurate exhaust monitoring, including 2021-2024 Kia Forte, 2021-2022 Kia Soul, and 2019-2021 Hyundai Veloster applications.
Key Features
- Specific-fit oxygen sensor for downstream installation
- Heated narrow-band design for responsive signal output
- 4-wire configuration with square female connector
- Spade terminals, 4 terminal count, male terminal gender
- M18 x 1.5 thread size with 22 mm wrench size
- Walker OE Base Sensor line for application-matched replacement coverage
Application Details
Walker Products develops engine management and oxygen/air-fuel sensors as OE replacement parts for vehicle-specific applications. Part number 250-241297 is built to match the required fitment position and diagnostic feedback expected by the ECU. This downstream oxygen sensor is listed for 2021-2024 Kia Forte, 2021-2022 Kia Soul, and 2019-2021 Hyundai Veloster, including 2020 Kia Forte B1S2 and 2019-2021 Hyundai Veloster B1S2 coverage.
What This Sensor Helps Address
- Check engine light related to downstream oxygen sensor performance
- Poor engine operation caused by incorrect exhaust feedback
- Increased fuel consumption from inaccurate air-fuel monitoring
- Higher exhaust emissions from a failing sensor signal
- Fault codes stored in the ECU for sensor or related system issues
Installation Notes
Confirm the downstream position, connector shape, terminal layout, and thread size before installation. Inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten sensor life and affect signal quality. For fitment searches, this part is commonly referenced for Kia Forte downstream oxygen sensor replacement, Kia Soul downstream oxygen sensor replacement, and Hyundai Veloster B1S2 oxygen sensor replacement. This part cross-references none listed for the same application.
Quality Assurance
Walker Products has manufactured engine management components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE Base Sensor line is built around application-specific fitment and diagnostic feedback requirements for modern vehicle systems. Part number 250-241297 reflects that OE-style replacement approach for the listed Kia and Hyundai applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Kia | Forte | 1.6L | L4 | Downstream | OE Base Sensor |
| 2022 | Kia | Forte | 1.6L | L4 | Downstream | OE Base Sensor |
| 2022 | Kia | Soul | 1.6L | L4 | Downstream | OE Base Sensor |
| 2021 | Hyundai | Veloster | 1.6L | L4 | Downstream | B1S2; OE Base Sensor |
| 2021 | Kia | Forte | 1.6L | L4 | Downstream | OE Base Sensor |
| 2021 | Kia | Soul | 1.6L | L4 | Downstream | OE Base Sensor |
| 2020 | Hyundai | Veloster | 1.6L | L4 | Downstream | B1S2; OE Base Sensor |
| 2020 | Kia | Forte | 1.6L | L4 | Downstream | B1S2; OE Base Sensor |
| 2019 | Hyundai | Veloster | 1.6L | L4 | Downstream | B1S2; OE Base Sensor |
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