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Aftermarket replacement part

Downstream Oxygen Sensor B1S2 for Hyundai Sonata 2015-2019, Tucson 2019-2021, Santa Fe 2019-2020, Kia Optima 2016-2020, Sorento 2016-2020, 2.4L

Price $34.98 USD Available to order

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Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.

Part type
Electrical & Switches

Product overview

This is a heated O2 oxygen sensor for many recent Hyundai and Kia models and the Hyundai Genesis. It measures oxygen in the exhaust so the engine computer can adjust the fuel mixture and monitor the catalytic converter. A failing oxygen sensor often causes a check engine light, poor fuel economy, rough idle or a failed emissions test.

Vehicle Fitment

  • Hyundai Genesis 2015-2016, V6 3.8L, upstream right
  • Hyundai Palisade 2020-2024, V6 3.8L, downstream front
  • Hyundai Santa Fe 2019-2020, L4 2.4L, B1S2, FWD; 2019-2020, L4 2.0L, B1S2; downstream
  • Hyundai Sonata 2015, L4 2.4L, B1S2, gas; 2016-2019, L4 2.4L, B1S2; 2018-2019, L4 2.0L turbocharged gas, B1S2; downstream
  • Hyundai Tucson 2018, L4 2.4L, FWD; 2019-2021, L4 2.4L, B1S2, FWD; downstream
  • Kia Cadenza 2017-2020, V6 3.3L, downstream rear
  • Kia K900 2016-2017, V6 3.8L, upstream front
  • Kia Optima 2016, L4 2.4L, B1S2, gas; 2017-2020, L4 2.4L, B1S2; downstream
  • Kia Sedona 2019-2021, V6 3.3L, downstream front
  • Kia Sorento 2016-2020, L4 2.4L, B1S2, FWD, downstream; 2019-2020, V6 3.3L, downstream rear
  • Kia Sportage 2021-2022, L4 2.0L, downstream
  • Kia Telluride 2020, V6 3.8L, downstream rear; 2021-2023, V6 3.8L, downstream front

Replaces Part Numbers

250-241283, 250241283

Specifications

  • Wires: 4
  • Overall length: 450mm
  • Sensor type: Heated
  • Mounting: Threaded
  • Connector gender: Female

What's Included

  • 1 oxygen sensor

Before You Order

Match the part number above with the one on your old sensor, or send us your VIN and we will confirm fitment for you. Check the sensor position listed for your model. Remove and install the sensor with the exhaust cool.

Shipping & Returns

Ships within the United States. Orders are processed within 1 business day. 30-day returns with free return shipping and no restocking fee. Questions? Email info@getorvexa.com or text +1 (252) 705-1212.

Vehicle applications

Listed applications

Vehicles this part is listed for. Match your engine and original part number, or send us your VIN and we will confirm fitment for you.

Vehicle applications
Make Model Years Engine / notes
Hyundai Genesis 2015–2016 V6 3.8L, upstream right
Hyundai Palisade 2020–2024 V6 3.8L, downstream front
Hyundai Santa Fe 2019–2020 L4 2.4L, B1S2, FWD
Hyundai Santa Fe 2019–2020 L4 2.0L, B1S2
Hyundai Santa Fe - downstream
Hyundai Sonata 2015 L4 2.4L, B1S2, gas
Hyundai Sonata 2016–2019 L4 2.4L, B1S2
Hyundai Sonata 2018–2019 L4 2.0L turbocharged gas, B1S2
Hyundai Sonata - downstream
Hyundai Tucson 2018 L4 2.4L, FWD
Hyundai Tucson 2019–2021 L4 2.4L, B1S2, FWD
Hyundai Tucson - downstream
Kia Cadenza 2017–2020 V6 3.3L, downstream rear
Kia K900 2016–2017 V6 3.8L, upstream front
Kia Optima 2016 L4 2.4L, B1S2, gas
Kia Optima 2017–2020 L4 2.4L, B1S2
Kia Optima - downstream
Kia Sedona 2019–2021 V6 3.3L, downstream front
Kia Sorento 2016–2020 L4 2.4L, B1S2, FWD, downstream
Kia Sorento 2019–2020 V6 3.3L, downstream rear
Kia Sportage 2021–2022 L4 2.0L, downstream
Kia Telluride 2020 V6 3.8L, downstream rear
Kia Telluride 2021–2023 V6 3.8L, downstream front

Scroll to see all application details

Fitment verification is the buyer's responsibility. A matching year and model alone does not confirm compatibility.

Before installation

Before installation

Professional installation is recommended. Confirm the part, engine code and installation requirements before work begins.

Parts-only liability

Liability is limited to the price paid for the part. Labor, towing, rental vehicles and engine damage are excluded.

Free US shipping

Free shipping within the US. Orders ship within 1 business day and arrive in 1 to 3 business days.