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Oxygen Sensor
Oxygen Sensor
Oxygen Sensor
BOSCH Oxygen Sensor - 13475
Oxygen Sensor
Oxygen Sensor
Oxygen Sensor
BOSCH Oxygen Sensor - 13475

Bosch Oxygen Sensor - 13475

BOSCH
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 13475
$104.69 - $104.69
$104.69
$104.69 - $104.69
$104.69
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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BOSCH

Oxygen Sensor

This product also goes by these part numbers: 11 78 1 742 051, 11781742051, 13475, 11 78 1 742 052, 11781742052

This part also goes by the following cross reference.

Cross Reference Part Number: 11781742051, 11781742052, 13475

Fits These Vehicles 9 applications
BMW
Make Model Engine Years
BMW Z8 5.0V8 2000–2003
BMW Z8 4.8V8 2003–2003
BMW M5 5.0V8 2000–2003
BMW 540i 4.4V8 1997–2003
BMW 740iL 4.4V8 1996–2001
BMW 740i 4.4V8 1997–2001
BMW 750iL 5.4V12 1995–1998
BMW 850Ci 5.4V12 1995–1997
BMW 840Ci 4.4V8 1996–1997

Fitment data last updated: 2026-06-30

Fits 9 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 13475 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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