HomeEmission Control > SensorsBosch 18087 Oxygen Sensor - Downstream
Part #: 18087

Bosch 18087 Oxygen Sensor - Downstream

Bosch Engineered Oxygen Sensor, Downstream
12 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Bosch Engineered Oxygen Sensor, Downstream
Fitment: Audi, A6 Quattro, A7 Quattro, A8 Quattro, S4, and S5
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Overview of Bosch Engineered Oxygen Sensor 18087

The Bosch Engineered Oxygen Sensor 18087 is designed specifically for select Audi models, including the A6 Quattro, A7 Quattro, A8 Quattro, S4, and S5. This direct fit, heated oxygen sensor ensures precise emission control and optimal engine performance.

  • Compatible with Audi A6 Quattro, A7 Quattro, A8 Quattro, S4, and S5
  • Part number 18087 for exact fit and function
  • Heated narrow-band oxygen sensor for accurate air-fuel mixture readings
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Includes 17.2-inch wiring harness with 4 male blade terminals and oblong male connector
  • Constructed with durable metal housing and steel finish
  • Standard replacement grade for reliable emission control

Detailed Product Description

The Bosch Engineered Oxygen Sensor 18087 is a specific fit oxygen sensor designed to meet the emission control requirements of various Audi Quattro models. Featuring a heated narrow-band sensor type, it provides accurate feedback to the engine control unit (ECU) for efficient fuel combustion and reduced emissions. The sensor includes a 17.2-inch wiring harness with four wires and male blade terminals, ensuring secure electrical connections. Its threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for straightforward installation. The sensor’s metal housing and steel finish contribute to its durability under high-temperature conditions. This standard replacement grade sensor is engineered to maintain factory-level performance and emission standards.

Common Applications and Issues Addressed

  • Restores proper air-fuel ratio monitoring in Audi A6 Quattro, A7 Quattro, A8 Quattro, S4, and S5
  • Resolves check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by providing accurate oxygen level data
  • Reduces harmful emissions by ensuring correct sensor feedback
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

  • Ensure compatibility with your specific Audi model before installation
  • Use a 22 mm oxygen sensor socket for removal and installation
  • Do not overtighten; torque to manufacturer specifications
  • Inspect wiring harness and connector for damage before installation
  • Replace sensor when engine reaches operating temperature for best results

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 18087 is manufactured to meet strict quality standards, ensuring reliable performance and durability. Bosch’s engineering expertise supports consistent sensor accuracy and longevity. This oxygen sensor is backed by Bosch’s standard warranty coverage, providing confidence in your replacement part.

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015AudiA6 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2015AudiA7 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2014AudiA6 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2014AudiA7 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2014AudiA8 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2014AudiS43.0LV6DownstreamBosch Engineered Oxygen Sensor
2014AudiS53.0LV6DownstreamBosch Engineered Oxygen Sensor
2013AudiA6 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2013AudiA7 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2013AudiA8 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2012AudiA6 Quattro3.0LV6DownstreamBosch Engineered Oxygen Sensor
2012AudiA7 Quattro3.0LV6DownstreamBosch 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.