The NTK Oxygen Sensor (Part 21058) is a direct-fit downstream sensor designed for Saab 9-7x vehicles with the 4.2L6 engine (2007-2009). It precisely monitors exhaust oxygen levels to optimize fuel efficiency and reduce emissions, outperforming stock sensors with its high accuracy and durable construction.
Key Features & Benefits
- High Accuracy: Provides precise oxygen readings for optimal engine performance.
- Durable Construction: Built with high-quality materials to withstand exhaust conditions.
- Direct Fit: Plug-and-play replacement, no modifications required.
- Improved Fuel Efficiency: Helps maintain proper air-fuel ratio for better mileage.
- Emissions Reduction: Ensures compliance with environmental standards.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Saab | 9-7x | 2007–2009 | 4.2L6 |
Technical Specifications
| Part Number | 21058 |
| Type | Downstream Oxygen Sensor |
| Position | Downstream |
Installation Notes
Factory plug-and-play connector; no splicing required for easy installation.
About NTK
NTK, a division of NGK Spark Plugs, is a leading manufacturer of oxygen sensors known for OE-quality replacement parts.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| Saab | 9-7x | 4.2L6 | 2007–2009 |