Walker
OE Base Sensor

Walker 250-241277 Oxygen Sensor

Brand Walker 250-241277
Position Upstream Left, Downstream Right, Downstream Left, Upstream Rear, Downstream Rear, and Downstream
Product line OE Base Sensor
Fits Genesis, Hyundai, and Kia · 46 vehicles

OE replacement. Engineered as an original-equipment replacement for oxygen sensors.

Provides the diagnostic feedback the ECU requires.

Walker Products has supplied engine management sensors since 1946.

$78.69Free shipping
In stock · usually ships same day before 1pm CST
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Order total $78.69
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Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Products OE Oxygen Sensor 250-241277

Walker Products OE 250-241277 is an oxygen sensor engineered as an original equipment replacement for specific applications. It delivers the diagnostic feedback the ECU expects, helping maintain proper fuel control and emissions monitoring on supported Genesis, Kia, and Hyundai vehicles.

Key Features

  • OE-style oxygen sensor for emissions control and engine management
  • Built for the specified application and sensor position
  • Supports ECU feedback for downstream and upstream monitoring
  • Walker Products OE line for application-specific replacement coverage
  • Part number 250-241277 for accurate ordering and lookup

Detailed Description

Walker Products OE 250-241277 is a direct-fit oxygen sensor designed for the exact vehicle position listed in the fitment data. This sensor is used to monitor exhaust oxygen content so the engine control unit can adjust air-fuel strategy and track emissions system performance. It is a practical replacement for vehicles showing sensor-related fault codes, poor running conditions, higher fuel use, or an illuminated malfunction indicator light. This part number 250-241277 is listed for applications including Genesis G70, Genesis G90, Genesis G80, Kia Stinger, Kia K900, and Hyundai Genesis in the positions shown below.

Walker Products OE focuses on application-specific engine management components, with each part number matched to the required fitment position and diagnostic feedback needs. For shoppers searching for a Genesis G70 downstream right oxygen sensor, a Kia Stinger downstream rear oxygen sensor, or a Hyundai Genesis upstream left oxygen sensor, this part provides a targeted OE replacement option.

Vehicle Fitment

  • Fits 2023-2026 Genesis G70, downstream right.
  • Fits 2021-2023 Kia Stinger, downstream right.
  • Fits 2022 Genesis G70, downstream.
  • Fits 2022 Genesis G90, downstream right.
  • Fits 2019-2021 Genesis G70, downstream right.
  • Fits 2019-2021 Genesis G70, downstream left.
  • Fits 2017-2021 Genesis G90, downstream right.
  • Fits 2017-2021 Genesis G90, downstream left.
  • Fits 2017-2020 Genesis G80, downstream right.
  • Fits 2017-2020 Genesis G80, downstream left.
  • Fits 2019-2020 Kia K900, downstream rear.
  • Fits 2018-2020 Kia Stinger, downstream rear.
  • Fits 2016-2017 Kia K900, upstream rear.
  • Fits 2015-2016 Hyundai Genesis, upstream left.

Common Issues This Sensor May Address

  • Oxygen sensor fault codes stored in the ECU
  • Rough engine operation or inconsistent fuel trim behavior
  • Increased fuel consumption
  • Higher exhaust emissions
  • Malfunction indicator light related to the emissions system

Installation Notes

Verify the sensor position before installation, since this part is listed for specific upstream and downstream locations. Inspect the sensor wiring harness and connector for damage before replacement, and check for exhaust leaks or related system faults that could affect sensor readings. For best results, confirm the vehicle application against the exact year, make, model, and position shown in the fitment list.

Quality Assurance

Walker Products has produced engine management and oxygen sensor components since 1946 and operates with ISO 9001/TS 16949 certification. The Walker Products OE line is built around application-specific replacement parts for accurate ECU feedback and OE-style fitment.

This part fits 46 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2024GenesisG70—3.3LV6—Downstream RightOE Base Sensor
2023GenesisG70—3.3LV6—Downstream RightOE Base Sensor
2023KiaStinger—3.3LV6—Downstream RightOE Base Sensor
2022GenesisG70—3.3LV6—DownstreamOE Base Sensor
2022GenesisG90—5.0LV8—Downstream RightOE Base Sensor
2022KiaStinger—3.3LV6—Downstream RightOE Base Sensor
2021GenesisG70—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021GenesisG70—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021GenesisG90—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021GenesisG90—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021KiaStinger—3.3LV6—Downstream RightOE Base Sensor
2020GenesisG70—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020GenesisG70—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020GenesisG80—3.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020GenesisG80—3.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020GenesisG80—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020GenesisG80—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020GenesisG90—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020GenesisG90—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020KiaK900—3.3LV6—Downstream RearOE Base Sensor
2020KiaStinger—3.3LV6—Downstream RearOE Base Sensor
2019GenesisG70—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019GenesisG70—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019GenesisG80—3.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019GenesisG80—3.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019GenesisG80—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019GenesisG80—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019GenesisG90—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019GenesisG90—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019KiaK900—3.3LV6—Downstream RearOE Base Sensor
2019KiaStinger—3.3LV6—Downstream RearOE Base Sensor
2018GenesisG80—3.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018GenesisG80—3.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018GenesisG80—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018GenesisG80—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018GenesisG90—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018GenesisG90—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018KiaStinger—3.3LV6—Downstream RearOE Base Sensor
2017GenesisG80—3.8LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017GenesisG80—3.8LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017GenesisG90—3.3LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017GenesisG90—3.3LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017KiaK900—3.8LV6—Upstream RearOE Base Sensor
2016HyundaiGenesis3.83.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE
2016KiaK900—3.8LV6—Upstream RearOE Base Sensor
2015HyundaiGenesis3.83.8LV6GASUpstream LeftInstall upstream oxygen sensor on the left side.; Walker Products OE