Air Fuel Ratio Lambda Oxygen Sensor Upstream for Nissan Altima, Cube, Maxima, Sentra, Versa

The Air Fuel Ratio Lambda Oxygen Sensor Upstream is a direct-fit, heated oxygen sensor designed for a range of Nissan models to keep your engine running clean, efficient, and reliably responsive. Built to replace worn or failing upstream sensors, this unit helps your ECU accurately monitor exhaust gas and adjust the air–fuel mix in real time. By maintaining proper combustion, you’ll notice steadier performance, improved fuel economy, and lower emissions while avoiding common symptoms like hesitation, rough idle, or a check engine light coming on due to a lazy sensor. This upstream sensor is a compatible replacement for Nissan Altima, Cube, Maxima, Sentra, and Versa from the late 2000s to early 2010s, with direct-fit, easy installation for a hassle-free repair.

Benefits & Tips

• Restore accurate oxygen-sensor readings to improve fuel efficiency and reduce emissions, helping your vehicle pass smog checks and run smoother on daily commutes.
• Enhance throttle response and idle stability by ensuring the ECU receives timely, reliable data from the upstream sensor.
• Fast warm-up and reliable performance in cold starts thanks to the built-in heating system, reducing ECU learning time and preventing rich/lean conditions during initial operation.

Tip: After installation, clear any stored codes and take the vehicle for a short drive to allow the ECU to relearn the new sensor readings for optimal performance.

Product specifications

• Brand: IWOKPHD
• Sensor Type: Piezoelectric
• Type: Heating Type
• Sensor Location: Upstream, Front, Upper (as per application)
• Measuring Range / Year/Model Compatibility: Nissan Altima 2008–2009; Nissan Cube 2009; Nissan Maxima 2009; Nissan Sentra 2008–2012; Nissan Versa 2008–2009 (Upstream)
• Compatibility / OEM Numbers: 234-9039, 2349039, 234 9039; 22693-1AA0B, 226931AA0B, 22693 1AA0B, 22693-ZJ60B, 22693ZJ60B, 22693 ZJ60B; 25679, 211200-7060, 2112007060
• Applications include variations for California Emissions: some Sentra 2.0L/2.5L 2008–2012 Upstream; check specific vehicle alignment for California Emissions notes
• Origin: Mainland China
• Direct Fit / Easy Installation
• Warranty: 2 years (Replacement Warranty)

Package includes:

• 1 x Oxygen Sensor (Upstream)

Warnings / Reminders

• Ensure compatibility with your exact year and model (listed vehicles are covered). Some Sentra variants have California Emissions considerations; verify your vehicle’s emission specification before ordering.
• Upstream sensor placement is front/upper in the exhaust stream. Incorrect installation can affect readings—prefer a mechanic if you’re unsure.
• All items are processed and shipped within 2 working days after payment is confirmed; duties and taxes to the destination are the buyer’s responsibility.

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