HomeEmission Control > SensorsSpectra OS5028 Oxygen Sensor - Upstream Left or Upstream Right
Part #: OS5028

Spectra OS5028 Oxygen Sensor - Upstream Left or Upstream Right

Upstream Left
⚙️ 30 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Land Rover, Discovery, Freelander, and Range Rover
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Oxygen Sensor for Land Rover Vehicles

The Spectra OS5028 oxygen sensor is designed specifically for Land Rover models including Discovery, Freelander, and Range Rover. This sensor helps maintain optimal engine performance and emissions control by accurately monitoring exhaust gases.

  • Compatible with Land Rover Discovery, Freelander, and Range Rover
  • Part number OS5028 ensures precise fitment and function
  • Essential component for emission control systems
  • Durable construction for consistent sensor readings
  • Direct replacement oxygen sensor for reliable operation

Product Details and Compatibility

The Spectra OS5028 oxygen sensor is engineered to meet the specifications required by Land Rover vehicles such as the Discovery, Freelander, and Range Rover. This sensor plays a critical role in the emission control system by measuring the oxygen content in the exhaust gases and providing feedback to the engine control unit (ECU). Accurate oxygen sensor data allows the ECU to adjust the air-fuel mixture for efficient combustion and reduced emissions. Using the correct part number OS5028 ensures proper fitment and sensor performance, helping maintain your vehicle’s emission standards and engine efficiency.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents failed emissions tests due to inaccurate oxygen readings
  • Addresses check engine light triggers related to oxygen sensor faults
  • Improves overall engine performance and exhaust emissions

Installation Notes and Tips

When installing the Spectra OS5028 oxygen sensor on Land Rover Discovery, Freelander, or Range Rover models, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove the old sensor carefully. Apply anti-seize compound to the threads of the new sensor if not pre-coated, but avoid contaminating the sensor tip. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool to confirm proper function.

Quality Assurance and Warranty

Spectra oxygen sensors are manufactured to meet OEM standards for durability and accuracy. The OS5028 part undergoes rigorous testing to ensure reliable performance in emission control applications. This product typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term use on compatible Land Rover models.

This part fits 30 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2004Land RoverDiscovery4.6LV8Upstream Right
2004Land RoverDiscovery4.6LV8Upstream Left
2004Land RoverFreelander2.5LV6Upstream Right
2004Land RoverFreelander2.5LV6Upstream Left
2003Land RoverDiscovery4.6LV8Upstream Right
2003Land RoverDiscovery4.6LV8Upstream Left
2003Land RoverFreelander2.5LV6Upstream Right
2003Land RoverFreelander2.5LV6Upstream Left
2002Land RoverDiscovery4.0LV8Upstream Right
2002Land RoverDiscovery4.0LV8Upstream Left
2002Land RoverFreelander2.5LV6Upstream Right
2002Land RoverFreelander2.5LV6Upstream Left
2002Land RoverRange Rover4.6LV8Upstream Right
2002Land RoverRange Rover4.6LV8Upstream Left
2001Land RoverDiscovery4.0LV8Upstream Right
2001Land RoverDiscovery4.0LV8Upstream Left
2001Land RoverRange Rover4.6LV8Upstream Right
2001Land RoverRange Rover4.6LV8Upstream Left
2000Land RoverDiscovery4.0LV8Upstream Right
2000Land RoverDiscovery4.0LV8Upstream Left
2000Land RoverRange Rover4.6LV8Upstream Right
2000Land RoverRange Rover4.6LV8Upstream Left
2000Land RoverRange Rover4.0LV8Upstream Right
2000Land RoverRange Rover4.0LV8Upstream Left
1999Land RoverDiscoverySeries II4.0LV8Upstream Right
1999Land RoverDiscoverySeries II4.0LV8Upstream Left
1999Land RoverRange Rover4.6LV8Upstream Right
1999Land RoverRange Rover4.6LV8Upstream Left
1999Land RoverRange Rover4.0LV8Upstream Right
1999Land RoverRange Rover4.0LV8Upstream Left

* 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:

15175151842132908213290923446942344695256235S38875S3888753338753463ES10895MHK100920MHK100940SG1706SG1706TSG1709SG1709TSU5577SU5578

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.