The NTK Oxygen Sensor (Part 21023) is a downstream replacement designed for Saab 9-7x 4.2L6 vehicles (2006). It monitors exhaust oxygen content to help the engine computer adjust fuel delivery, resulting in improved fuel economy, reduced emissions, and smooth performance.
Key Features & Benefits
- High Sensitivity: Detects minute changes in oxygen levels for precise control.
- Improved Fuel Economy: Helps achieve optimal air-fuel mixture for better mileage.
- Lower Emissions: Ensures the vehicle meets emissions standards.
- Durable Construction: Built to withstand harsh exhaust conditions.
- Direct Fit: Easy to install with no additional wiring required.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Saab | 9-7x | 2006 | 4.2L6 |
Technical Specifications
| Part Number | 21023 |
| Type | Downstream Oxygen Sensor |
| Position | Downstream |
Installation Notes
Factory connector matches existing harness; installation takes under 30 minutes.
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 | 2006–2006 |