HomeEmission Control > SensorsBosch 13191 Oxygen Sensor - Downstream or Upstream
Part #: 13191

Bosch 13191 Oxygen Sensor - Downstream or Upstream

Bosch Engineered Oxygen Sensor, Upstream
⚙️ 28 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Bosch Engineered Oxygen Sensor, Upstream
🚗Fitment: Chevrolet, GMC, Pontiac, Oldsmobile, and Saturn, S10, Sonoma, Cavalier, Sunfire, Alero, Grand Am, L100, L200, LW200, LS, LS1, and LW1
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Overview of Bosch Engineered Oxygen Sensor 13191

The Bosch Engineered Oxygen Sensor 13191 is designed for precise emission control in select Chevrolet, GMC, Oldsmobile, Pontiac, and Saturn vehicles. This specific-fit oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.

  • Specific fit for Chevrolet Alero, Cavalier, Grand Am, GMC S10, Sonoma, Oldsmobile L100, L200, LS, LS1, LW1, LW200, Pontiac Sunfire, and Saturn models
  • Standard replacement grade for reliable performance
  • Narrow-band non-heated oxygen sensor type
  • Threaded mounting with 18 mm thread diameter and 22 mm hex size
  • 13-inch wiring harness length with oblong male connector and blade terminals
  • Overall length of 16.7 inches and 2-wire configuration
  • Durable metal housing finished in steel
  • Wiring harness included for straightforward installation

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise sensor technology tailored to specific vehicle applications. This product line emphasizes compatibility and quality, providing sensors engineered to meet OEM specifications. The 13191 oxygen sensor is part of this line, offering a standard replacement option that supports emission control systems in various GM vehicles.

Detailed Product Description

The Bosch Engineered Oxygen Sensor 13191 is a narrow-band, non-heated oxygen sensor designed for threaded mounting with an 18 mm thread diameter. It features a 2-wire configuration with blade-type terminals housed in a durable steel metal casing. The sensor includes a 13-inch wiring harness with an oblong male connector, facilitating a secure and specific fit for the listed Chevrolet, GMC, Oldsmobile, Pontiac, and Saturn models. Its overall length of 16.7 inches and 15.6-inch length from sealing surface to connector end ensure proper installation depth and connectivity. This sensor is intended as a standard replacement part, maintaining the vehicle’s emission control system functionality without requiring additional mounting brackets.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for proper air-fuel mixture control
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by ensuring correct sensor feedback
  • Reduces vehicle emissions by maintaining proper sensor operation
  • Prevents drivability issues caused by faulty oxygen sensors

Installation Notes and Tips

  • Ensure compatibility with your specific Chevrolet, GMC, Oldsmobile, Pontiac, or Saturn model before installation
  • Use a 22 mm hex socket for sensor removal and installation
  • Do not overtighten the sensor; follow manufacturer torque specifications
  • Verify wiring harness connections are secure and free of corrosion
  • Replace the sensor when the check engine light indicates oxygen sensor failure or during scheduled maintenance

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 13191 is manufactured to meet OEM standards for fit, form, and function. Bosch provides quality assurance through rigorous testing to ensure sensor reliability and durability. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors. Consult product documentation or Bosch directly for warranty terms related to this oxygen sensor.

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2003ChevroletS102.2LL4UpstreamBosch Engineered Oxygen Sensor
2003GMCSonoma2.2LL4UpstreamBosch Engineered Oxygen Sensor
2002ChevroletCavalier2.4LL4DownstreamBosch Engineered Oxygen Sensor
2002ChevroletS102.2LL4UpstreamBosch Engineered Oxygen Sensor
2002GMCSonoma2.2LL4UpstreamBosch Engineered Oxygen Sensor
2002PontiacSunfire2.4LL4UpstreamBosch Engineered Oxygen Sensor
2001ChevroletCavalier2.2LL4UpstreamBosch Engineered Oxygen Sensor
2001ChevroletCavalier2.4LL4UpstreamBosch Engineered Oxygen Sensor
2001ChevroletS102.2LL4UpstreamBosch Engineered Oxygen Sensor
2001GMCSonoma2.2LL4UpstreamBosch Engineered Oxygen Sensor
2001OldsmobileAlero2.4LL4UpstreamBosch Engineered Oxygen Sensor
2001PontiacGrand Am2.4LL4UpstreamBosch Engineered Oxygen Sensor
2001PontiacSunfire2.4LL4UpstreamBosch Engineered Oxygen Sensor
2001PontiacSunfire2.2LL4UpstreamBosch Engineered Oxygen Sensor
2001SaturnL1002.2LL4UpstreamBosch Engineered Oxygen Sensor
2001SaturnL2002.2LL4UpstreamBosch Engineered Oxygen Sensor
2001SaturnLW2002.2LL4UpstreamBosch Engineered Oxygen Sensor
2000ChevroletCavalier2.2LL4UpstreamBosch Engineered Oxygen Sensor
2000ChevroletCavalier2.4LL4UpstreamBosch Engineered Oxygen Sensor
2000ChevroletS102.2LL4FLEXUpstreamBosch Engineered Oxygen Sensor
2000GMCSonoma2.2LL4FLEXUpstreamBosch Engineered Oxygen Sensor
2000OldsmobileAlero2.4LL4UpstreamBosch Engineered Oxygen Sensor
2000PontiacGrand Am2.4LL4UpstreamBosch Engineered Oxygen Sensor
2000PontiacSunfire2.4LL4UpstreamBosch Engineered Oxygen Sensor
2000PontiacSunfire2.2LL4UpstreamBosch Engineered Oxygen Sensor
2000SaturnLS2.2LL4UpstreamBosch Engineered Oxygen Sensor
2000SaturnLS12.2LL4UpstreamBosch Engineered Oxygen Sensor
2000SaturnLW12.2LL4UpstreamBosch Engineered Oxygen Sensor

* 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.