For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381
For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 is a direct-fit replacement sensor for downstream emission control. Made with ABS plastic and metal, it ensures accurate exhaust monitoring. Priced at $19.05, it's ideal for DIY mechanics maintaining fuel efficiency and passing emissions tests on 2007–2013 Altimas and compatible Infiniti models.
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Key features
- Exact fit for OEM 234-4381 and 22690-ED000
- ABS plastic and metal construction
- Designed for downstream (post-cat) placement
- Compatible with gas and hybrid 2.5L engines
- Fits 2007–2013 Altima and select Infiniti SUVs
- Supports California and federal emissions models
- No splicing or modifications required
Pros
- +Affordable at $19.05
- +Direct OEM replacement design
- +Easy installation with factory connector
- +Works with multiple engine types
- +Helps pass emissions testing
Cons
- −Only for downstream position
- −Limited to specific model years
- −Not suitable for upstream replacement
About For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381
What is For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381?
The For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 is a precision-engineered replacement part designed to monitor oxygen levels in the exhaust stream after the catalytic converter. Also known as a post-cat sensor, it helps maintain optimal engine performance, fuel economy, and low emissions. Compatible with Nissan Altima models from 2007 to 2013 equipped with 2.5L or 3.5L engines, this downstream O2 sensor ensures your vehicle meets emissions standards and runs efficiently. It's also suitable for select Infiniti QX56 and QX80 models with V8 5.6L engines up to August 2015.
Key features
- Exact Fit — Replaces OEM part numbers 234-4381 and 22690-ED000 for seamless installation.
- Durable Build — Constructed with ABS plastic and metal components for heat and corrosion resistance.
- Downstream Placement — Installed after the primary catalyst to monitor converter efficiency.
- Broad Compatibility — Fits multiple Nissan Altima trims and select Infiniti SUVs with 5.6L V8 engines.
- Gas & Hybrid Support — Works with both gas-powered and hybrid engine variants across model years.
- Location-Specific — Designed for center or post-catalyst positioning depending on model year and configuration.
- California Compliance — Available variants meet California emissions requirements where applicable.
Who is For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 for?
This O2 sensor is ideal for Nissan Altima owners and DIY auto technicians seeking an affordable, reliable replacement for a failing downstream oxygen sensor. It’s especially useful for those preparing for state emissions testing, troubleshooting check engine lights related to O2 sensor codes (like P0420), or restoring fuel efficiency. Mechanics working on 2007–2013 Altimas or compatible Infiniti QX models will appreciate its plug-and-play design and OEM-matching specifications.
How does For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 compare?
Compared to universal O2 sensors requiring splicing, this direct-fit unit eliminates guesswork and wiring modifications. It matches the performance of OEM sensors at a fraction of the cost, outperforming generic aftermarket versions in reliability and compatibility. Unlike upstream sensors, it's optimized for post-catalytic monitoring, ensuring accurate feedback on converter efficiency. For owners of older Altimas, it offers a more trustworthy solution than rebuilt or used sensors, with consistent readings and long-term durability under high-heat conditions.
Best use cases
- →Replacing failed O2 sensor in 2007 Altima
- →Fixing P0420 code on 2010–2012 models
- →Emissions test prep for 2013 Altima
- →DIY repair on hybrid 2.5L engine
- →Maintenance on Infiniti QX56 5.6L V8
Is For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 right for you?
This O2 sensor is best for Nissan Altima owners from 2007–2013 needing a downstream replacement. Ideal for DIYers with basic wrench skills. Confirm your engine size and sensor location before purchase. Alternatives include OEM dealership parts (more expensive) or universal sensors (require wiring). This unit offers the best balance of cost, fit, and reliability for targeted repairs.
How it compares: Compared to universal O2 sensors, this direct-fit model eliminates wiring errors and ensures compatibility. It's more reliable than used or rebuilt units and costs less than OEM replacements from dealerships, making it the smart choice for accurate, long-term emission control in compatible Nissan and Infiniti vehicles.
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$7.91Frequently Asked Questions
What does the downstream O2 sensor do?
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The downstream O2 sensor monitors oxygen levels after the catalytic converter to assess its efficiency. It helps the ECU determine if the converter is working properly and ensures emissions remain within legal limits, especially during smog checks.
Does this fit my 2010 Nissan Altima 2.5L?
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Yes, this sensor fits 2010–2012 Nissan Altima 2.5L models with gas or hybrid engines. It installs in the downstream position, either center-located or after the primary catalyst, depending on trim and emissions package.
How is this different from an upstream O2 sensor?
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Upstream sensors monitor exhaust before the catalytic converter to adjust air-fuel mixture. This downstream sensor checks converter performance. They are not interchangeable due to different signal outputs and placement requirements.
Is this sensor California emissions compliant?
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This sensor fits both California and federal emissions models of the Nissan Altima 2007–2013. Verify your vehicle’s emissions label under the hood to ensure correct compatibility before installation.
Can I install this O2 sensor myself?
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Yes, most DIYers can install this sensor with a wrench and oxygen sensor socket. No wiring changes are needed—it plugs directly into the factory harness. Ensure the engine is cool before starting.
How much does For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 cost?
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For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 is $19.05 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 in stock at Lab Work Auto?
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Yes, For Nissan Altima 2007-2013 2.5L 3.5L O2 Oxygen Sensor Downstream 234-4381 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-011157