NTK 25204 Oxygen Sensor - Downstream Right

Direct Fit Oxygen Sensor

NTK oxygen sensor 25204 is a direct-fit, heated sensor built for specific applications with threaded mounting and a 4-wire design. It is engineered for accurate exhaust feedback and OE-style fitment on select Hyundai and Kia models.

Key Features

• Direct-fit oxygen sensor for specific applications
• Heated sensor design for faster operating response
• 4-wire configuration with threaded mounting
• 29.25-inch wiring harness length
• 18.000 thread diameter
• NTK part number 25204

Detailed Description

NTK 25204 is part of the Direct Fit Oxygen Sensor line, a product line focused on application-specific replacement and OE-style fitment. NTK draws on its background as a major oxygen sensor manufacturer and uses controlled ceramic technology and manufacturing testing to support fit, form, and function. This oxygen sensor is listed for downstream right placement on select Hyundai Azera, Kia Cadenza, and Kia Sedona applications, including 2012-2017 Hyundai Azera, 2014-2016 Kia Cadenza, and 2014 Kia Sedona. The part number 25204 is also referenced for the same application under cross-reference numbers 234-4572 and 392103CDB0.

What It Is Used For

• Replacing a worn or slow-responding oxygen sensor
• Restoring exhaust gas feedback to the engine control system
• Addressing oxygen sensor fault codes
• Correcting drivability issues tied to inaccurate air-fuel readings
• Replacing a damaged threaded sensor with the correct direct-fit unit

Installation Notes and Tips

Verify the downstream right location and confirm the vehicle application before installation. Match the 4-wire heated sensor configuration, threaded mount, and harness length to the original part. For 2014 Kia Sedona applications, note the fitment detail listed as to 5/21/13. Use the part number 25204 to confirm the correct replacement before installation.

Quality Assurance

NTK states that its oxygen sensors are extensively tested during manufacturing and are built to meet or exceed OE specifications. The brand is part of the NGK family and is known for OE application coverage and oxygen sensor manufacturing expertise.