HomeEmission Control > SensorsSpectra OS5019 Oxygen Sensor - Upstream Left or Upstream Right
Part #: OS5019

Spectra OS5019 Oxygen Sensor - Upstream Left or Upstream Right

Upstream Left
⚙️ 22 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: BMW, 750iL, 850Ci, and 850i
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Reliable Oxygen Sensor for BMW 750iL, 850Ci, and 850i

The Spectra OS5019 oxygen sensor is designed to provide accurate emissions monitoring for select BMW models. Engineered to meet OEM specifications, this sensor helps maintain optimal engine performance and emission control.

  • Compatible with BMW 750iL, 850Ci, and 850i models
  • Part number OS5019 ensures precise fit and function
  • Monitors oxygen levels in exhaust gases for efficient combustion
  • Supports emission control system compliance
  • Durable construction for long service life

Product Details and Compatibility

The Spectra OS5019 oxygen sensor is specifically designed for use in BMW 750iL, 850Ci, and 850i vehicles. This sensor plays a critical role in measuring the oxygen content in the exhaust stream, allowing the engine control unit to adjust fuel injection for optimal combustion. By maintaining accurate air-fuel ratios, the OS5019 helps reduce harmful emissions and supports fuel efficiency. The part number OS5019 corresponds to a direct replacement sensor that meets the original equipment standards for these BMW models.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves emission test performance by ensuring accurate readings
  • Supports smooth engine operation and reduced exhaust emissions

Installation Notes and Tips

When installing the Spectra OS5019 oxygen sensor, ensure the vehicle 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, avoiding contamination of the sensor tip. Verify proper electrical connections and clear any diagnostic trouble codes after installation to reset the engine control unit.

Quality Assurance and Warranty

Manufactured to meet or exceed OEM specifications, the Spectra OS5019 oxygen sensor undergoes rigorous quality control testing. This ensures reliable performance and durability under normal operating conditions. Please refer to the product documentation for specific warranty details provided by Spectra.

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994BMW750iL5.0LV12Upstream Right
1994BMW750iL5.0LV12Upstream Left
1994BMW850Ci5.0LV12Upstream Right
1994BMW850Ci5.0LV12Upstream Left
1993BMW750iL5.0LV12Upstream Right
1993BMW750iL5.0LV12Upstream Left
1993BMW850Ci5.0LV12Upstream Right
1993BMW850Ci5.0LV12Upstream Left
1992BMW750iL5.0LV12Upstream Right
1992BMW750iL5.0LV12Upstream Left
1992BMW850i5.0LV12Upstream Right
1992BMW850i5.0LV12Upstream Left
1991BMW750iL5.0LV12Upstream Right
1991BMW750iL5.0LV12Upstream Left
1991BMW850i5.0LV12Upstream Right
1991BMW850i5.0LV12Upstream Left
1990BMW750iL5.0LV12Upstream Right
1990BMW750iL5.0LV12Upstream Left
1989BMW750iL5.0LV12Upstream Right
1989BMW750iL5.0LV12Upstream Left
1988BMW750iL5.0LV12Upstream Right
1988BMW750iL5.0LV12Upstream 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:

117817185101178172001911781733628132312131344234467625533751557ES10253OS558OS558POS652SG508SG508T

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