BMW 325xi Air- Fuel Ratio Sensors
Your BMW 325xi 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 13 different Air- Fuel Ratio Sensors for your vehicle, ready for shipping or in-store pick up. The best part is, our BMW 325xi Air- Fuel Ratio Sensors start from as little as $94.74.
When it comes to your BMW 325xi, 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. Some of our top Air- Fuel Ratio Sensors brands are Bosch and NTK. We’re sure you will get the right product to keep that 325xi running for a long time.
We even have reviews of our OEM and aftermarket Air- Fuel Ratio Sensors products to help you buy with confidence. Hear from other customers via the 272 reviews on parts for your BMW 325xi.
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 325xi, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Compare 25 BMW Air- Fuel Ratio Sensors
Bosch – Bosch Oxygen Sensor (Part No.C5010334301BOS)
from
$224.20
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
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Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Walker – Walker Oxygen Sensor (Part No.C5010380280WKR)
from
$213.12
Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.
Product Features:
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Product Features:
- Improved Engine Response and Performance
- Lower Emissions
- Improved Fuel Economy
- Longer Sensor Life
- Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install
NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 57" Long, Heated, Direct Fit (Part No.24317)
from
$161.99
NTK 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, NTK 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.
Product Features:
See More
Product Features:
- OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
- PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
- EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
- EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
DENSO – First Time Fit Oxygen Sensor (Part No.C5010378632ND)
from
$94.74
Denso First Time Fit oxygen sensors are constructed of the highest quality materials available. High-quality stainless steel, porous polytetrafluoroethylene (PTFE), fluorine rubber, aluminum oxide, high-grade platinum and ceramics are used in each DENSO sensor.
Product Features:
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Product Features:
- SUPERIOR DESIGN – Maximizes engine performance and fuel efficiency while reducing harmful emissions.
- DOUBLE-PROTECTION COVER – Maintains proper unit temperature for quicker response times and protects the ceramic element against silicone and lead poisoning.
- ALUMINUM-OXIDE TRAP LAYER – Keeps silicone and lead outside the ceramic element through DENSO’s exclusive design, preventing damage to the platinum electrode.
- STAINLESS STEEL HOUSING – Resists corrosion and contamination with a rugged, watertight body.
Bosch – Bosch Oxygen Sensor (Part No.C5010162704BOS)
from
$106.61
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
See More
Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Bosch – Bosch Oxygen Sensor (Part No.C5010334299BOS)
from
$172.73
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
See More
Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Bosch – Bosch Oxygen Sensor (Part No.C5010314669BOS)
from
$191.56
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
See More
Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 5 Wire, 18.8" Long, Heated, Direct Fit (Part No.24365)
from
$196.99
NTK 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, NTK 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.
Product Features:
See More
Product Features:
- OEM QUALITY: NTK is the world’s largest supplier of original equipment oxygen sensors with renowned quality that meets or exceeds OEM specifications
- PRODUCT ENGINEERING: Based on OE expertise, but specifically engineered for the aftermarket, NTK Oxygen Sensors offer superior OE fit, form, function
- OE TECHNOLOGY: Upgraded to the latest OE technologies, NTK Oxygen Sensors are designed to reduce OE failures, enhance durability and performance
- EXTENSIVE TESTING: OE development includes vibration and thermal shock testing. Testing during manufacturing guarantees quality and reliability
- EASY INSTALLATION: NTK Oxygen Sensors are equipped with OE specified, water-resistant connectors and harness accessory hardware for easy installation
- ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning
- NTK ADVANTAGE: Superior dual-coated platinum interface and thinner ceramic element produces fastest light off and response times with best durability
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 25.83" Long, Heated, Exact Fit (Part No.234-5166)
from
$377.99
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 the first t
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 51.10" Long, Heated, Exact Fit (Part No.234-5025)
from
$375.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 15.20" Long, Heated, Exact Fit (Part No.234-5168)
from
$371.99
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 the first t
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – First Time Fit Air Fuel Ratio Sensor (Part No.C5015689928ND)
from
$355.03
DENSO a global supplier to automakers manufactures an OE-equivalent direct fit air fuel ratio sensor that maintains the quality and performance of the Original Equipment it replaces. DENSO continues to innovate with the latest development in air fuel ratio sensors. These components, also known as wide-band oxygen sensors, have a broader response range to provide much finer control of air/fuel mixtures over a greater variety of operating conditions.
Product Features:
See More
Product Features:
- Tarnish-proof platinum electrodes provides longer life and maintains accuracy
- Quick-response planar zirconia element can quickly detect oxygen concentration
- Measures A/F ratios from approximately 12:1 to 19:1
- Increased performance by mapping a/f ratios throughout rpm range
- Reduces emissions by keeping the air-fuel mixture at an optimum ratio
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 43.31" Long, Heated, Exact Fit (Part No.234-5027)
from
$334.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Air/Fuel Sensor (Part No.234-5716)
from
$320.99
Air/Fuel Sensor
DENSO – Air/Fuel Sensor (Part No.234-5717)
from
$320.99
Air/Fuel Sensor
DENSO – Air/Fuel Sensor (Part No.234-5718)
from
$292.99
Air/Fuel Sensor
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 33.39" Long, Heated, Exact Fit (Part No.234-5165)
from
$262.99
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 the first t
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – First Time Fit Air Fuel Ratio Sensor (Part No.C5015689927ND)
from
$259.00
DENSO a global supplier to automakers manufactures an OE-equivalent direct fit air fuel ratio sensor that maintains the quality and performance of the Original Equipment it replaces. DENSO continues to innovate with the latest development in air fuel ratio sensors. These components, also known as wide-band oxygen sensors, have a broader response range to provide much finer control of air/fuel mixtures over a greater variety of operating conditions.
Product Features:
See More
Product Features:
- Tarnish-proof platinum electrodes provides longer life and maintains accuracy
- Quick-response planar zirconia element can quickly detect oxygen concentration
- Measures A/F ratios from approximately 12:1 to 19:1
- Increased performance by mapping a/f ratios throughout rpm range
- Reduces emissions by keeping the air-fuel mixture at an optimum ratio
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 46.85" Long, Heated, Exact Fit (Part No.234-5138)
from
$252.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Air/Fuel Sensor (Part No.234-5743)
from
$251.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
See More
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 38.66" Long, Heated, Exact Fit (Part No.234-5137)
from
$247.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100% checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Air/Fuel Sensor (Part No.234-5742)
from
$233.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement+ and a first time fit.; DENSO gives you the right part and the right fit+ the first time.
See More
Bosch – Bosch Oxygen Sensor (Part No.C5010404308BOS)
from
$232.29
The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life.
Product Features:
See More
Product Features:
- OE-Equivalent.
- Direct fit for easy installation.
- OE Style connectors and wire lengths.
- Base ceramic probe of Zirconium and Yttrium.
- Patented Platinum Power Grid.
Walker – Walker Oxygen Sensor (Part No.C5010380171WKR)
from
$232.02
Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.
Product Features:
See More
Product Features:
- Improved Engine Response and Performance
- Lower Emissions
- Improved Fuel Economy
- Longer Sensor Life
- Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install
Walker – Walker Oxygen Sensor (Part No.C5010380279WKR)
from
$231.09
Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specification and test requirements.
Product Features:
See More
Product Features:
- Improved Engine Response and Performance
- Lower Emissions
- Improved Fuel Economy
- Longer Sensor Life
- Meets OEM Specifications Installation Notes: Vehicles equipped with Air Fuel Ratio Sensors may look very similar to the Oxygen Sensor. Please confirm the correct part before ordering and if the connector does not match, do not install
FAQs for BMW 325xi Air- Fuel Ratio Sensors
What are the most popular Air- Fuel Ratio Sensors for the BMW 325xi?
With 3 brands you can trust, our most popular Air- Fuel Ratio Sensors for the BMW 325xi are:
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