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Spectra OS5197 Oxygen Sensor - Downstream or Upstream
Reliable Oxygen Sensor for Subaru Forester, Impreza, and Legacy
The Spectra OS5197 oxygen sensor is designed to provide accurate emissions monitoring for select Subaru models. Engineered to meet OEM specifications, this sensor helps maintain optimal engine performance and emissions control.
Key Features of Spectra OS5197 Oxygen Sensor
- Compatible with Subaru Forester, Impreza, and Legacy models
- Direct replacement oxygen sensor for emission control systems
- Ensures precise air-fuel mixture readings for efficient combustion
- Durable construction for long-lasting performance
- Part number OS5197 for easy identification and fitment
Detailed Product Description
The Spectra OS5197 oxygen sensor is an essential component in the emission control system of Subaru Forester, Impreza, and Legacy vehicles. It monitors the oxygen levels in the exhaust gases, providing real-time data to the engine control unit (ECU). This data allows the ECU to adjust the air-fuel mixture for optimal combustion, reducing harmful emissions and improving fuel efficiency. The sensor is manufactured to meet strict quality standards, ensuring reliable operation under various driving conditions. Using the correct oxygen sensor like the OS5197 helps maintain engine performance and complies with emission regulations.
Common Issues Addressed by the Spectra OS5197 Oxygen Sensor
- Check engine light triggered by faulty oxygen sensor readings
- Poor fuel economy due to incorrect air-fuel mixture
- Rough engine idle or hesitation during acceleration
- Failed emissions tests related to exhaust gas composition
- Increased exhaust emissions impacting environmental compliance
Installation Notes and Tips
When replacing the oxygen sensor on Subaru Forester, Impreza, or Legacy models, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Apply anti-seize compound to the threads of the new OS5197 sensor if not pre-coated, avoiding contamination of the sensor tip. Verify proper electrical connections and clear any diagnostic trouble codes after installation to reset the ECU.
Quality Assurance and Warranty Information
The Spectra OS5197 oxygen sensor is manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided, Spectra products typically undergo rigorous testing to ensure durability and performance. Using this sensor supports maintaining your Subaru vehicle’s emission system integrity and compliance.
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1998 | Subaru | Forester | 2.5L | H4 | Downstream | |
| 1998 | Subaru | Impreza | 2.5L | H4 | Downstream | |
| 1998 | Subaru | Impreza | 2.2L | H4 | Downstream | |
| 1998 | Subaru | Legacy | 2.5L | H4 | Downstream | |
| 1998 | Subaru | Legacy | 2.2L | H4 | Downstream | |
| 1997 | Subaru | Impreza | 2.2L | H4 | Upstream | |
| 1997 | Subaru | Impreza | 2.2L | H4 | Downstream | |
| 1997 | Subaru | Impreza | 1.8L | H4 | Upstream | |
| 1997 | Subaru | Impreza | 1.8L | H4 | Downstream | |
| 1997 | Subaru | Legacy | 2.5L | H4 | Downstream | |
| 1997 | Subaru | Legacy | 2.2L | H4 | Downstream | |
| 1996 | Subaru | Impreza | 2.2L | H4 | Upstream | |
| 1996 | Subaru | Impreza | 2.2L | H4 | Downstream | |
| 1996 | Subaru | Impreza | 1.8L | H4 | Upstream | |
| 1996 | Subaru | Impreza | 1.8L | H4 | Downstream | |
| 1996 | Subaru | Legacy | 2.5L | H4 | Downstream | |
| 1996 | Subaru | Legacy | 2.2L | H4 | Downstream | |
| 1995 | Subaru | Impreza | 2.2L | H4 | Upstream | |
| 1995 | Subaru | Impreza | 2.2L | H4 | Downstream | |
| 1995 | Subaru | Legacy | 2.2L | H4 | Upstream | |
| 1995 | Subaru | Legacy | 2.2L | H4 | Downstream |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.