NTK 25183 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Hyundai and Kia

NTK Oxygen Sensor 25183 is a specific-fit, heated downstream sensor built for select Hyundai and Kia applications. It is engineered to match OE-style fit, form, and function for accurate exhaust monitoring in the 2006-2008 Hyundai Sonata, 2006-2008 Kia Magentis, 2006-2008 Kia Optima, and 2007-2008 Kia Rondo.

Key Features

• Specific-fit direct replacement oxygen sensor
• Heated sensor design for faster operating readiness
• 4-wire configuration with 18.2500 wiring harness length
• Threaded mounting type with 18.000 thread diameter
• Downstream B1S2 application for the listed vehicles
• NTK part number 25183 for OE-style replacement matching

Product Line Details

NTK Direct Fit Oxygen Sensor products are built for import and domestic coverage with application-specific design. NTK uses ceramic sensor manufacturing expertise and OE-focused engineering to deliver consistent fit and signal performance across the vehicle applications listed for part number 25183.

Detailed Description

NTK 25183 is a downstream oxygen sensor for vehicles that require a direct-fit replacement in the exhaust system. It is a heated, threaded sensor with a 4-wire layout, designed for the 2006-2008 Hyundai Sonata, 2006-2008 Kia Magentis, 2006-2008 Kia Optima, and 2007-2008 Kia Rondo. This part cross-references Bosch 15320 for the same application. The sensor is manufactured to meet OE specifications and is extensively tested during production to support reliable operation and proper installation fit.

What It Helps Address

• Check engine light related to downstream oxygen sensor faults
• Incorrect exhaust oxygen signal readings
• Emissions system fault codes tied to B1S2 sensor performance
• Slow sensor response from a worn heated oxygen sensor
• Driveability issues caused by inaccurate air-fuel feedback monitoring

Installation Notes and Tips

Confirm the vehicle’s year, make, model, and downstream B1S2 location before installation. The threaded mounting design and specific-fit harness are intended to match the listed applications, including 2006-2008 Hyundai Sonata, 2006-2008 Kia Optima, and the other covered Hyundai and Kia models. Inspect the connector routing and exhaust thread condition before installing NTK 25183.

Quality Assurance

NTK is a major original equipment oxygen sensor manufacturer, and this sensor is produced with OE application standards in mind. Each unit is tested during manufacturing to help ensure quality and reliability that meets or exceeds OE specifications.