2009 Infiniti QX56 Air- Fuel Ratio Sensors

Your 2009 Infiniti QX56 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Air- Fuel Ratio Sensors you desperately need.

We currently carry 2 Air- Fuel Ratio Sensors to choose from for your 2009 Infiniti QX56, and our inventory prices range from as little as $134.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Air- Fuel Ratio Sensors for the 2009 Infiniti QX56. We only sell parts from trusted brands like DENSO so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 10 reviews on our Air- Fuel Ratio Sensors for the 2009 Infiniti QX56 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Air- Fuel Ratio Sensors stock in-person!

Air- Fuel Ratio Sensors for Your 2009 Infiniti QX56

DENSO – Wideband Oxygen Sensor: Upstream, 4 Wire, 14.57" Long, Heated, Exact Fit (Part No.234-9038)

Wideband Oxygen Sensor: Upstream, 4 Wire, 14.57" Long, Heated, Exact Fit

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$134.99
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:
  • 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
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NTK – Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 15.8" Long, Heated, Direct Fit (Part No.25679)

Wideband Oxygen Sensor: Air-Fuel Ratio 4 Wire, 15.8" Long, Heated, Direct Fit

from

$134.99
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:
  • 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
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