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Spectra OS5306 Oxygen Sensor - Downstream or Upstream
| Brand | Spectra OS5306 |
|---|---|
| Position | Upstream |
| Fits | Lexus and Toyota · 14 vehicles |
OE replacement. Meets or exceeds original equipment performance.
Precision-engineered oxygen sensor for dependable emissions control.
Cross-references Bosch 15244, Bosch 15270 and Carlson 13586 for the same application. See all 46.
Spectra OS5306 Oxygen Sensor
The Spectra OS5306 oxygen sensor is a direct-fit emission control replacement for select Lexus and Toyota applications. It is built to match original equipment performance targets, helping restore accurate exhaust oxygen monitoring for proper fuel control and emissions management.
Key Features
- Oxygen sensor for emission control systems
- OE-style replacement for select upstream and downstream locations
- Engineered and manufactured to meet or exceed original equipment performance expectations
- Fits 1998-2005 Lexus GS300, upstream, cyl. 1 and 3
- Fits 2001-2003 Toyota Highlander, downstream
- Fits 2001-2003 Toyota RAV4, downstream
Detailed Description
Spectra Premium OS5306 is an oxygen sensor replacement for vehicles that rely on precise exhaust feedback to manage air-fuel ratio and emissions output. This part number is used in select Lexus GS300, Toyota Highlander, and Toyota RAV4 applications, including upstream service on the 1998-2005 Lexus GS300 and downstream service on the 2001-2003 Toyota Highlander and 2001-2003 Toyota RAV4. This part cross-references Bosch 15244 and Delphi ES20156 for the same application.
Common Issues This Part May Address
- Check engine light related to oxygen sensor performance
- Incorrect fuel trim readings from a worn sensor
- Reduced emissions monitoring accuracy
- Rough idle or drivability concerns tied to exhaust feedback faults
- Failed emissions inspection caused by sensor deterioration
Installation Notes and Tips
Confirm the sensor position before ordering, since OS5306 is listed for both upstream and downstream applications. Verify connector style, thread size, and engine configuration against the vehicle service information before installation. For the Lexus GS300, this listing applies to cylinder 1 and 3 upstream locations.
Quality Assurance
Spectra Premium states that its oxygen sensors are produced with engineering, manufacturing, and quality control processes intended to meet or exceed the performance of the original equipment part they replace.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 2004 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 2003 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 2003 | Toyota | Highlander | 2.4L | L4 | Downstream | — |
| 2003 | Toyota | RAV4 | 2.0L | L4 | Downstream | — |
| 2002 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 2002 | Toyota | Highlander | 2.4L | L4 | Downstream | — |
| 2002 | Toyota | RAV4 | 2.0L | L4 | Downstream | — |
| 2001 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 2001 | Toyota | Highlander | 2.4L | L4 | Downstream | — |
| 2001 | Toyota | RAV4 | 2.0L | L4 | Downstream | — |
| 2000 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 1999 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
| 1998 | Lexus | GS300 | 3.0L | L6 | Upstream | Cyl. 1 And 3 |
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