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Bosch Emissions

Engine throwing an emissions related check engine light? Our emissions section has emissions parts that are considered normal maintenance.

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Bosch BMW Oxygen Sensor - 11787530735

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T#:13056

Part#: 11787530735

In Stock at Vendor

$ 244.99

This product was last offered at the strikethrough price on
05-07-2026

$ 237.99 USD

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$ 237.99 USD

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BOSCH REGULATING LAMBDA PROBE:117013

Oxygen Sensor - Priced Each

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T#:591943

Part#: 11787595353

In Stock at Vendor

$ 234.99

This product was last offered at the strikethrough price on
05-07-2026

$ 227.99 USD

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$ 227.99 USD

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OEM Bosch Oxygen Sensor - 1450mm - BMW E34 525i M50

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T#:639139

Part#: 11781735680

Ships in 2 Business Days

$ 138.99

This product was last offered at the strikethrough price on
02-16-2026

$ 106.99 USD

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$ 106.99 USD

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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