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Walker 250-24988 Oxygen Sensor - Downstream or Upstream
Overview of Walker 250-24988 Oxygen Sensor
The Walker 250-24988 oxygen sensor is designed specifically for select Hyundai and Kia models, including the Elantra, Forte, and Tucson. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.
- Heated sensor type for faster response times
- Specific fit for Hyundai and Kia vehicles
- 22.17-inch wiring harness length for easy installation
- Four-wire design with 22 gauge wire for reliable signal transmission
- Radiused polygon male connector for secure connection
- Threaded mounting type with 18.0 mm thread diameter
- Overall length of 25.71 inches for proper fitment
Walker Products OE Brand Line Details
The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-24988 oxygen sensor from this line is engineered to provide consistent performance and durability, matching the standards expected by Hyundai and Kia manufacturers.
Product Description and Attributes
This oxygen sensor features a heated element to reduce warm-up time, improving emissions control shortly after engine start. The four-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring accurate and stable readings. The 22 gauge wire size balances flexibility and durability, while the 22.17-inch wiring harness length allows for proper routing in the engine bay. The radiused polygon male connector ensures a secure and precise fit with the vehicle’s wiring harness. The sensor mounts via an 18.0 mm threaded fitting, compatible with the exhaust system of Hyundai Elantra, Forte, Sonata, Tucson, and Kia Optima, Seltos, and other models listed.
Compatible Vehicles and Applications
- Hyundai Elantra, Elantra Coupe, Elantra GT
- Hyundai Forte, Forte5, Forte Koup
- Hyundai Kona, Optima, Sonata, Tucson
- Kia Seltos and other specified models
Common Issues Addressed by This Oxygen Sensor
- Check engine light triggered by faulty oxygen sensor readings
- Poor fuel economy due to incorrect air-fuel mixture
- Increased emissions and failed emissions tests
- Engine hesitation or rough idle caused by sensor malfunction
- Reduced engine performance and drivability issues
Installation Notes and Tips
Ensure the vehicle is cool before installation to avoid burns. Disconnect the battery to prevent electrical shorts. Use the correct 18.0 mm socket for sensor removal and installation. Verify the connector type matches the vehicle harness to avoid connection issues. Avoid twisting or damaging the wiring harness during installation to maintain sensor integrity.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and longevity. This part number 250-24988 is backed by Walker’s quality assurance processes. Please refer to Walker’s official warranty policy for specific coverage details.
| Brand | Walker |
| Part Number | 250-24988 |
| Position | Walker Products OE, Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 25.71 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 22 |
| Wire Quantity | 4 |
| Wiring Harness Length | 22.17 |
This part fits 108 vehicles. Search below:
| Year | Make | Model | Submodel | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | Kia | Forte | 2.0L | L4 | Downstream | OE Base Sensor | ||||
| 2023 | Kia | Seltos | FWD | 2.0L | L4 | Upstream | OE Base Sensor | |||
| 2022 | Kia | Forte | 2.0L | L4 | Downstream | OE Base Sensor | ||||
| 2022 | Kia | Seltos | FWD | 2.0L | L4 | Upstream | OE Base Sensor | |||
| 2021 | Hyundai | Kona | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2021 | Hyundai | Tucson | FWD | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2021 | Kia | Forte | 2.0L | L4 | Downstream | OE Base Sensor | ||||
| 2021 | Kia | Seltos | FWD | 2.0L | L4 | Upstream | OE Base Sensor | |||
| 2020 | Hyundai | Elantra | Value Edition | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Al 04/15/2019; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SEL | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Al 04/15/2019; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SE | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Al 04/15/2019; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | Limited | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Al 04/15/2019; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | Value Edition | 2.0L | L4 | GAS | Downstream | To 04/15/2019; Al 04/15/2019; Downstream; B1S2; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SEL | 2.0L | L4 | GAS | Downstream | To 04/15/2019; Al 04/15/2019; Downstream; B1S2; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SE | 2.0L | L4 | GAS | Downstream | To 04/15/2019; Al 04/15/2019; Downstream; B1S2; Walker Products OE | ||
| 2020 | Hyundai | Elantra | Limited | 2.0L | L4 | GAS | Downstream | To 04/15/2019; Al 04/15/2019; Downstream; B1S2; Walker Products OE | ||
| 2020 | Hyundai | Elantra | Value Edition | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SEL | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | SE | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Elantra | Limited | 2.0L | L4 | GAS | Downstream | To 04/15/2019; B1S2; Downstream; Walker Products OE | ||
| 2020 | Hyundai | Kona | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2020 | Hyundai | Tucson | FWD | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2020 | Kia | Forte | LXS | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2020 | Kia | Forte | GT-Line | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2020 | Kia | Forte | FE | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2020 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2020 | Kia | Optima | Plug-In Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2020 | Kia | Optima | Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Hyundai | Kona | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2019 | Hyundai | Sonata | Plug-In Hybrid | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Hyundai | Sonata | Plug-In Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Hyundai | Sonata | Hybrid SE | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Hyundai | Sonata | Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Hyundai | Tucson | FWD | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Kia | Forte | S | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2019 | Kia | Forte | LXS | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2019 | Kia | Forte | FE | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2019 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products OE | ||
| 2019 | Kia | Optima | Plug-In Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2019 | Kia | Optima | Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Hyundai | Kona | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2018 | Hyundai | Sonata | Plug-In Hybrid | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Hyundai | Sonata | Plug-In Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Hyundai | Sonata | Hybrid SE | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Hyundai | Sonata | Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Kia | Optima | Plug-In Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Kia | Optima | Hybrid Premium | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2018 | Kia | Optima | Hybrid EX | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2017 | Hyundai | Elantra | 2.0L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE | |||
| 2017 | Hyundai | Elantra | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2017 | Hyundai | Elantra | 2.0L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE | |||
| 2017 | Hyundai | Sonata | Plug-In Hybrid | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2017 | Hyundai | Sonata | Plug-In Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2017 | Hyundai | Sonata | Hybrid SE | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2017 | Hyundai | Sonata | Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2017 | Kia | Optima | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2016 | Hyundai | Elantra | Sport | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Elantra | Value Edition | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Elantra | SE | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Elantra | Limited | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2016 | Hyundai | Sonata | Plug-In Hybrid | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Sonata | Plug-In Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Sonata | Hybrid | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Hyundai | Sonata | Hybrid Limited | 2.0L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | ||
| 2016 | Kia | Forte | LX | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2016 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | ||
| 2016 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2016 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2016 | Kia | Forte5 | LX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2016 | Kia | Forte5 | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2016 | Kia | Forte5 | LX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2016 | Kia | Forte5 | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2015 | Hyundai | Elantra | Sport | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2015 | Hyundai | Elantra | SE | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2015 | Hyundai | Elantra | Limited | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2015 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2015 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | ||
| 2015 | Kia | Forte | LX | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2015 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | ||
| 2015 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2015 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2015 | Kia | Forte5 | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2015 | Kia | Forte5 | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2014 | Hyundai | Elantra | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2014 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |||
| 2014 | Hyundai | Elantra | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2014 | Hyundai | Elantra Coupe | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2014 | Hyundai | Elantra Coupe | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2014 | Hyundai | Elantra GT | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2014 | Hyundai | Elantra GT | 2.0L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2014 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | ||
| 2014 | Kia | Forte | LX | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2014 | Kia | Forte | EX | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | ||
| 2014 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; B1S2; Downstream; Walker Products OE | |
| 2014 | Kia | Forte Koup | EX | Automatic | 2.0L | L4 | GAS | Downstream | Calif ESV; Downstream; B1S2; Walker Products OE | |
| 2014 | Kia | Forte5 | 2.0L | L4 | Upstream Right | B1S2; OE Base Sensor | ||||
| 2013 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2013 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2013 | Hyundai | Elantra Coupe | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2013 | Hyundai | Elantra Coupe | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2013 | Hyundai | Elantra GT | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2013 | Hyundai | Elantra GT | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2012 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2012 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE | |||
| 2011 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE | |||
| 2011 | Hyundai | Elantra | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.