HomeEmission Control > SensorsNTK 25606 Oxygen Sensor - Upstream
Part #: 25606

NTK 25606 Oxygen Sensor - Upstream

Direct Fit Oxygen Sensor, Upstream
⚙️ 18 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit Oxygen Sensor, Upstream
🚗Fitment: Kia and Hyundai, Sportage, Tucson, Tiburon, and Elantra
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Overview of NTK Direct Fit Oxygen Sensor 25606

The NTK Direct Fit Oxygen Sensor 25606 is designed specifically for select Hyundai and Kia models, including the Elantra, Sportage, Tiburon, and Tucson. This heated oxygen sensor features a threaded mounting type and a precise 18mm thread diameter, ensuring a secure and accurate fit for your vehicle's emission control system.

  • Heated oxygen sensor for improved response time
  • Specific fit for Hyundai Elantra, Kia Sportage, Tiburon, and Tucson
  • Threaded mounting with 18mm thread diameter
  • Wiring harness length of 8.75 inches with 4 wires
  • Part number 25606 for easy identification

Detailed Product Description

This NTK oxygen sensor belongs to the Direct Fit Oxygen Sensor product line, which is engineered to provide a precise replacement for original equipment sensors. The Direct Fit Oxygen Sensor line focuses on exact fitment and reliable performance, reducing installation time and ensuring compatibility with the vehicle’s engine management system. The 25606 sensor is a heated type, which helps the sensor reach operating temperature faster, improving fuel efficiency and emissions control.

With a wiring harness length of 8.75 inches and four wires, this sensor integrates seamlessly with the vehicle’s existing wiring. The threaded mounting type with an 18mm diameter allows for straightforward installation and a secure connection. This sensor is designed specifically for Hyundai and Kia vehicles, including the Elantra, Sportage, Tiburon, and Tucson models, ensuring proper fit and function.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces engine misfires and rough idling
  • Improves fuel economy by providing accurate oxygen level readings
  • Prevents increased emissions and failed emissions tests
  • Resolves check engine light issues related to oxygen sensor faults

Installation Notes and Tips

  • Ensure the vehicle is cool before installation to avoid burns
  • Use proper tools to avoid damaging the sensor or threads
  • Verify the wiring harness length and connector compatibility before installation
  • Follow vehicle manufacturer torque specifications for sensor installation
  • Clear any diagnostic trouble codes after installation to reset the engine control unit

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The Direct Fit Oxygen Sensor 25606 undergoes rigorous testing to confirm proper operation under various driving conditions. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.

BrandNTK
Part Number25606
PositionDirect Fit Oxygen Sensor, Upstream
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter18.000
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length8.7500

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2009HyundaiTucson2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2009KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2008HyundaiTucson2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2008KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2007HyundaiTucson2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2007KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2006HyundaiTiburon2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2006HyundaiTucson2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2006KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2005HyundaiTiburon2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2005HyundaiTucson2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2005KiaSportage2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2004HyundaiTiburon2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2003HyundaiElantra2.0LL4UpstreamB1S1; 4-Wire Oxygen Sensor; OE Equivalent Design; Direct Fit Oxygen Sensor
2003HyundaiTiburon2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2002HyundaiElantra2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
2001HyundaiElantra2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor

* 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:

1339113565213-2889234-48523921023500392102371075-220975-3612ES20170OS1606OS5185SG852

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.