Upstream Downstream Air Fuel Ratio O2 Oxygen Sensor For Nissan Altima 2013 2017

Product Overview

The Upstream & Downstream Air Fuel Ratio O2 Sensor set replaces worn or failing oxygen sensors to restore proper fuel trim and emission control. These direct-fit sensors are calibrated specifically for 2013-2017 Nissan Altima engines, eliminating check engine lights and improving fuel economy. Designed for Nissan Altima owners, this sensor pair ensures accurate air-fuel ratio readings for optimal engine performance.

Key Features & Performance

• Includes one upstream (pre-cat) and one downstream (post-cat) sensor
• Wideband air-fuel ratio technology delivers fast, precise ECU feedback
• Plug-and-play connectors match factory harness without splicing
• Response time meets or exceeds OEM specifications
• Corrosion-resistant stainless steel bodies with high-temperature coatings
• Pre-calibrated for immediate operation out of the box

Fitment & Compatibility

• 2013 Nissan Altima 2.5L / 3.5L
• 2014 Nissan Altima 2.5L / 3.5L
• 2015 Nissan Altima 2.5L / 3.5L
• 2016 Nissan Altima 2.5L / 3.5L
• 2017 Nissan Altima 2.5L / 3.5L

Common Uses

• Replacing faulty sensors causing P0130–P0167 trouble codes
• Restoring fuel efficiency lost to degraded sensor response
• Eliminating rough idle or hesitation from incorrect air-fuel mixture
• Completing a full sensor refresh when both upstream and downstream sensors are due
• Passing emissions tests by restoring proper catalyst monitoring

Technical Specifications

• Sensor Type: Air/Fuel Ratio (Wideband) O2 Sensor
• Positions Included: Upstream (Pre-Cat) and Downstream (Post-Cat)
• Quantity: 2 Sensors (1 Upstream, 1 Downstream)
• Connector: Vehicle-specific direct-fit plug
• Material: Stainless steel body with high-temperature coating
• Compatibility: 2013-2017 Nissan Altima (2.5L / 3.5L engines)

Frequently Asked Questions

Q: Does this set include the upstream air-fuel ratio sensor and the downstream oxygen sensor? A: Yes, the pack includes one upstream wideband sensor and one downstream sensor for a complete replacement on 2013-2017 Nissan Altima.

Q: Will these sensors fit both the 2.5L and 3.5L engine options? A: Yes, they are compatible with both engine sizes across all trims for those model years.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.