NTK 22124 Oxygen Sensor - Downstream

NTK Direct Fit Oxygen Sensor for Ford Focus

NTK Part Number 22124 is a direct fit heated oxygen sensor built for specific downstream applications on the Ford Focus. It is engineered for 2003-2011 Ford Focus models and supports OE-style fit, form, and function for emissions system service.

Key Features

• Specific-fit downstream oxygen sensor for select Ford Focus applications
• Heated sensor design for faster operating temperature and stable signal output
• 4-wire configuration with a 12.25-inch wiring harness
• Threaded mounting style with 18 mm thread diameter
• OE-focused construction from NTK, the Sensor Specialist
• Part number 22124 for direct replacement lookup

Product Details

NTK Direct Fit Oxygen Sensor 22124 is part of the brand’s direct replacement line, created to streamline application coverage while maintaining OE-level fit and function. NTK manufactures oxygen sensors with ceramic technology control from raw material through finished product, and each sensor is extensively tested during production to help ensure quality and reliability that meets or exceeds OE specifications. This sensor is listed for downstream placement on Ford Focus models, including 2008-2011 Ford Focus, downstream, and 2003-2007 Ford Focus, downstream with heat shield catalyst mounting notes. If you are searching for a Ford Focus downstream oxygen sensor or an NTK 22124 replacement, this part is built for those exact applications.

This part cross-references Bosch 15753 and Delphi ES20358 for the same application.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Fault codes tied to downstream sensor signal response
• Reduced emissions system monitoring accuracy
• Rough or inconsistent fuel control caused by a failing sensor
• Service replacement for a worn or contaminated Ford Focus oxygen sensor

Installation Notes and Tips

Verify the sensor position before ordering: this listing is for downstream applications only. Confirm the connector style, harness length, and threaded mounting location against the original sensor on your Ford Focus. For 2003-2007 Ford Focus applications, the notes specify attachment through the heat shield in the catalyst. Use the vehicle’s exact year and engine/emissions configuration to confirm fitment before installation.

Quality Assurance

NTK is a major original equipment oxygen sensor supplier and uses manufacturing controls focused on OE-level fit and performance. The 22124 is tested during production to support dependable operation in import and domestic emission control service.