BMW 550i Air- Fuel Ratio Sensors

Your BMW 550i will be happy to know that the search for the right Air- Fuel Ratio Sensors you’ve been looking for is over! Advance Auto Parts has 2 different Air- Fuel Ratio Sensors for your vehicle, ready for shipping or in-store pick up. The best part is, our BMW 550i Air- Fuel Ratio Sensors start from as little as $111.99.

When it comes to your BMW 550i, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Air- Fuel Ratio Sensors brands so you can shop with complete confidence. We’re sure you will get the right product to keep that 550i running for a long time.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Air- Fuel Ratio Sensors for your 550i, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

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Compare 22 BMW Air- Fuel Ratio Sensors

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 15"" Long, Heated, Direct Fit, 24317" (Part No.24317)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 15"" Long, Heated, Direct Fit, 24317"

from

$147.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
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DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 51.10"" Long, Heated, Exact Fit, 234-5025" (Part No.234-5025)

"DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 51.10"" Long, Heated, Exact Fit, 234-5025"

from

$375.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 43.31"" Long, Heated, Exact Fit, 234-5027" (Part No.234-5027)

"DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 43.31"" Long, Heated, Exact Fit, 234-5027"

from

$334.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 20.08"", 234-5716" (Part No.234-5716)

"DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 20.08"", 234-5716"

from

$321.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 39.06"", 234-5717" (Part No.234-5717)

"DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 39.06"", 234-5717"

from

$321.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 17.40"", 234-5718" (Part No.234-5718)

"DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 17.40"", 234-5718"

from

$292.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 21.93"", 234-5711" (Part No.234-5711)

"DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 21.93"", 234-5711"

from

$235.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 13.19"", 234-5712" (Part No.234-5712)

"DENSO Air-Fuel Ratio Sensor 5 Wire, Direct Fit, Heated, Wire Length: 13.19"", 234-5712"

from

$233.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 18.50"", 234-5742" (Part No.234-5742)

"DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 18.50"", 234-5742"

from

$233.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 28.86"", 234-5745" (Part No.234-5745)

"DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 28.86"", 234-5745"

from

$231.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: 5 Wire, 14.29"" Long, Heated, Exact Fit, 234-5135" (Part No.234-5135)

"DENSO Wideband Oxygen Sensor: 5 Wire, 14.29"" Long, Heated, Exact Fit, 234-5135"

from

$213.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
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DENSO – "DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 28.90"", 234-5744" (Part No.234-5744)

"DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 28.90"", 234-5744"

from

$205.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 38.66"" Long, Heated, Exact Fit, 234-5137" (Part No.234-5137)

"DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 38.66"" Long, Heated, Exact Fit, 234-5137"

from

$205.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

DENSO – "DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 15.24"", 234-5743" (Part No.234-5743)

"DENSO Air/Fuel Sensor 5 Wire, Direct Fit, Heated, Wire Length: 15.24"", 234-5743"

from

$199.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 11.5"" Long, Heated, Direct Fit, 27000" (Part No.27000)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 11.5"" Long, Heated, Direct Fit, 27000"

from

$189.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
See More

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 11.5"" Long, Heated, Direct Fit, 24315" (Part No.24315)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 11.5"" Long, Heated, Direct Fit, 24315"

from

$184.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. NTK is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
See More

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 35.5"" Long, Heated, Direct Fit, 24321" (Part No.24321)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 35.5"" Long, Heated, Direct Fit, 24321"

from

$169.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
See More

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 11.8"" Long, Heated, Direct Fit, 24364" (Part No.24364)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 11.8"" Long, Heated, Direct Fit, 24364"

from

$164.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
See More

DENSO – "DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 24.37"" Long, Heated, Exact Fit, 234-5133" (Part No.234-5133)

"DENSO Wideband Oxygen Sensor: Upstream, 5 Wire, 24.37"" Long, Heated, Exact Fit, 234-5133"

from

$161.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

NTK – "NTK Titania Oxygen Sensor: 3 Wire, 10.75"" Long, Heated, Direct Fit, 27082" (Part No.27082)

"NTK Titania Oxygen Sensor: 3 Wire, 10.75"" Long, Heated, Direct Fit, 27082"

from

$156.99
NGK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
See More

DENSO – "DENSO Wideband Oxygen Sensor: 5 Wire, 26.26"" Long, Heated, Exact Fit, 234-5136" (Part No.234-5136)

"DENSO Wideband Oxygen Sensor: 5 Wire, 26.26"" Long, Heated, Exact Fit, 234-5136"

from

$145.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit at the first time.
See More

NTK – "NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 12.5"" Long, Heated, Direct Fit, 24333" (Part No.24333)

"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 12.5"" Long, Heated, Direct Fit, 24333"

from

$111.99
NGK is the sensor specialist for import and domestic applications. Established under the NGK product family, oxygen sensors are part of our ongoing commitment to streamlining product types and increasing coverage. A ceramic company at our core, uses cutting-edge technology to control the ceramic used in our oxygen sensors from raw material to finished product. NTK is the world’s largest supplier and manufacturer of OE oxygen sensors. Combining expertise and innovation, oxygen sensors deliver superior fit, form, and function. oxygen sensors undergo extensive testing during manufacturing to ensure quality and reliability that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for comprehensive market support and OE application technology.
See More

FAQs for BMW 550i Air- Fuel Ratio Sensors

What are the most popular Air- Fuel Ratio Sensors for the BMW 550i?

With 2 brands you can trust, our most popular Air- Fuel Ratio Sensors for the BMW 550i are:
"DENSO Wideband Oxygen Sensor: 5 Wire, 26.26"" Long, Heated, Exact Fit, 234-5136"
from $145.99
This product is not rated
"DENSO Wideband Oxygen Sensor: 5 Wire, 26.26"" Long, Heated, Exact Fit, 234-5136"
Air- Fuel Ratio Sensors
"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 12.5"" Long, Heated, Direct Fit, 24333"
from $111.99
This product is not rated
"NTK Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 12.5"" Long, Heated, Direct Fit, 24333"
Air- Fuel Ratio Sensors