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BMW Oxygen Sensor (Upstream) - Bosch 17051
BMW Oxygen Sensor (Upstream) - Bosch 17051
BMW Oxygen Sensor (Upstream) - Bosch 17051
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Load image into Gallery viewer, BMW Oxygen Sensor (Upstream) - Bosch 17051
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BMW Oxygen Sensor (Upstream) - Bosch 17051

Exhaust Oxygen Sensors
Bosch
BOS-17051
Many in stock
$799.00 CAD $279.00 CAD
BMW Oxygen Sensor (Upstream) - Genuine BMW 11787836394

Alternative Available

We also recommend an equivalent from Genuine BMW.

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In Stock

Estimated Delivery: Jun 08, 2026 - Jun 14, 2026

BMW Oxygen Sensor (Downstream) - Genuine BMW 11787836451
BMW Oxygen Sensor (Downstream) - Genuine BMW 11787836451
$799.00 $716.52
BMW Oxygen Sensor (Upstream) - Genuine BMW 11787836394
BMW Oxygen Sensor (Upstream) - Genuine BMW 11787836394
$799.00 $716.52
BMW Oxygen Sensor (Upstream) - Bosch 17051
Product Product subtotal Quantity Price Product subtotal
BMW Oxygen Sensor (Upstream) - Bosch 17051
BMW Oxygen Sensor (Upstream) - Bosch 17051BOS-17051
BMW Oxygen Sensor (Upstream) - Bosch 17051BOS-17051
$799.00
$279.00/ea
 $0.00
$799.00
$279.00/ea
 $0.00

Details

SKU: BOS-17051
GTIN / UPC: 00028851170512
Made in: Germany
Quality: OE

OE Numbers

11787836394, 11787586693

MFG Numbers

17051, 0258017051

Product Information

620 mm wire length with OE connector and heated probe.

Upstream oxygen sensors are responsible for measuring exhaust gases as they exit the engine. This information is sent to the DME, allowing the engine management system to adjust fuel trim and maintain the proper air-fuel ratio.

Oxygen Sensor
The oxygen sensor works with the engine control unit to optimize engine performance, fuel efficiency, and emissions control. By monitoring oxygen content in the exhaust stream, the sensor helps the ECU adjust fueling based on current operating conditions.

Common failure symptoms:

  • Reduced fuel mileage
  • Failed emissions testing
  • Check engine light
  • Poor driveability

About Bosch

Bosch is a global leader in automotive components and engineering innovation. Founded in Germany in 1886, Bosch has been at the forefront of automotive technology for over a century. They pioneered mass-produced fuel injection systems in 1967 and introduced the first oxygen (lambda) sensors in 1976 — setting the standard for modern engine efficiency and emissions control.

Today, Bosch supplies a wide range of OE and aftermarket parts trusted by vehicle manufacturers and independent repair shops worldwide. From ignition systems and sensors to filters and electronics, Bosch products are designed with precision and built for performance, safety, and reliability.

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Product Warranty Manufacturer's applicable warranties are honored on all products, typically ranging from 1 to 5 years depending on the brand and product.
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Supplied and Installed by GEMS When a covered part is both supplied and installed by GEMS autocraft, eligible claims cover the part and the workmanship together during the applicable warranty period.
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