Encore OS-K10005 Oxygen Sensor - Downstream or Upstream Rear
OE Quality 60-Day Returns
Encore

Encore OS-K10005 Oxygen Sensor - Downstream or Upstream Rear

Brand Encore OS-K10005
Position Downstream
Universal or Specific Fit Specific
Fits Kia and Hyundai · 28 vehicles

Specific fit. Oxygen sensor made for a precise application.

Cross-references 3921023750 for the same application. See all 1.

$71.60Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $71.60
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Oxygen Sensor options

Encore OS-K10005 Oxygen Sensor

Encore OS-K10005 is a specific-fit oxygen sensor for select Hyundai and Kia applications. It is listed for downstream and upstream rear positions, making it a direct replacement option for vehicles that need accurate exhaust feedback and emissions monitoring.

  • Specific-fit oxygen sensor for targeted vehicle applications
  • Fits downstream and upstream rear locations, depending on application
  • Cross-reference: 3921023750
  • Part number: OS-K10005

Vehicle Fitment

  • Fits 2005-2010 Kia Sportage, downstream.
  • Fits 2005-2009 Hyundai Tucson, downstream.
  • Fits 2004-2009 Kia Spectra, downstream.
  • Fits 2005-2009 Kia Spectra5, downstream.
  • Fits 2008 Hyundai Tiburon, upstream rear.
  • Fits 2007 Hyundai Tiburon, upstream rear.
  • Fits 2005-2006 Hyundai Elantra, upstream rear.
  • Fits 2003-2004 Hyundai Elantra, upstream rear.

What It Helps Address

  • Check engine light related to oxygen sensor performance
  • Incorrect air-fuel ratio feedback from a worn sensor
  • Emissions test failures tied to sensor response issues
  • Rough idle or drivability concerns caused by inaccurate exhaust readings
  • Replacement needs for a failed downstream or upstream rear sensor

Installation Notes

Confirm the sensor position before ordering, since this part is listed for downstream and upstream rear applications only. Verify connector style, thread engagement, and vehicle emission configuration against the original sensor on the Kia Sportage, Hyundai Tucson, Kia Spectra, Kia Spectra5, Hyundai Tiburon, or Hyundai Elantra before installation.

Quality Assurance

Encore OS-K10005 is a specific-fit replacement oxygen sensor built for the listed applications and cross-references OE number 3921023750 for the same application. Use the vehicle fitment details above to confirm the correct application before purchase.

Related reading

This part fits 28 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2010KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2009HyundaiTucson2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2009KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2009KiaSpectra52.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2009KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2008HyundaiTiburon2.0LL4Upstream RearFitment available for Engine Crankshaft Position Sensor.
2008HyundaiTucson2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2008KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2008KiaSpectra52.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2008KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2007HyundaiTiburon2.0LL4Upstream RearAvailability: Available to Order; Genuine OE Oxygen Sensor; From 2006/12/10
2007HyundaiTucson2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2007KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2007KiaSpectra52.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2007KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2006HyundaiElantra2.0LL4Upstream RearAvailability: Available to Order; Genuine OE Part; California Emission
2006HyundaiTucson2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2006KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2006KiaSpectra52.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2006KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2005HyundaiElantra2.0LL4Upstream RearAvailability: Available to Order; Genuine OE Part; California Emission
2005HyundaiTucson2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2005KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2005KiaSpectra52.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2005KiaSportage2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2004HyundaiElantra2.0LL4Upstream RearAvailability: Available to Order; Genuine OE Part; California Emission; From 2003/07/01
2004KiaSpectra2.0LL4DownstreamFitment available for Engine Crankshaft Position Sensor.
2003HyundaiElantra2.0LL4Upstream RearAvailability: Available to Order; Genuine OE Part; California Emission; From 2003/07/01
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
3921023750