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NTK 25153 Oxygen Sensor - Downstream
| Brand | NTK 25153 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 12.5000 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | Hyundai · 7 vehicles |
Direct-fit design. Built for specific applications with OE-style fit, form, and function.
Heated sensor. Helps the sensor reach operating temperature quickly for responsive exhaust monitoring.
OE-focused engineering. NTK tests oxygen sensors extensively during manufacturing for quality and reliability.
Cross-references BBB Industries 13754, Delphi ES20204 and DENSO Auto Parts 234-4042 for the same application. See all 7.
Direct Fit Oxygen Sensor for Hyundai Sonata
This NTK oxygen sensor is a direct-fit, heated replacement built for specific applications. It is engineered for accurate exhaust monitoring and reliable signal response in vehicles that require a threaded, 4-wire sensor.
Key Features
- Direct-fit oxygen sensor for specific applications
- Heated sensor design for faster operating response
- 4-wire configuration with a threaded mounting type
- 18 mm thread diameter and 12.5 in. wiring harness length
- NTK part number 25153
Detailed Description
NTK 25153 is a specific-fit oxygen sensor for 1999-2005 Hyundai Sonata downstream applications with catalyst in the exhaust pipe under the floor pan. As part of NTK’s Direct Fit Oxygen Sensor line, it is built to match OE-style fit, form, and function for the intended application. NTK is recognized as a major OE oxygen sensor supplier, and this sensor is manufactured and tested to meet or exceed OE specifications.
For Hyundai Sonata owners replacing a downstream sensor, this NTK oxygen sensor 25153 provides the correct heated, threaded configuration for the listed application. The direct-fit design supports straightforward replacement without needing to adapt the sensor to the vehicle’s original setup.
What This Sensor Helps Address
- Fault codes related to oxygen sensor performance
- Slow or inaccurate exhaust gas feedback
- Emissions monitoring issues in the downstream circuit
- Replacement needs for a worn or failed heated sensor
- Fitment problems caused by incorrect thread or harness configuration
Installation Notes and Tips
Verify the downstream location, connector style, wire count, and thread diameter before installation. This sensor uses a threaded mounting type and a 12.5-inch harness length, so routing should match the original layout on the vehicle. Confirm the application details for your Hyundai Sonata before ordering.
Quality Assurance
NTK manufactures oxygen sensors with OE application technology and extensive production testing to support quality and reliability. Part number 25153 is backed by NTK’s OE-focused engineering approach and direct-fit product line.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 2004 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 2003 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 2002 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 2001 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 2000 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
| 1999 | Hyundai | Sonata | 2.4L | L4 | Downstream | B1S2; w/Catalyst in Exh. Pipe (Under Floor Pan); OE MFR: NTK; Direct Fit Oxygen Sensor |
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