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Marsflex Air Fuel Ratio O2 Oxygen Sensor Upstream 234-5060 Compatible with Nissan Quest Maxima Murano Altima Armada Frontier Pathfinder Titan Sentra Infiniti M45 QX56 Replacement 226936M400 12499877

4.8 (7) Write Review
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$35.99

$ 16 .99 $16.99

In Stock

About this item

  • Cautions: Please check your vehicle fitment carefully in the product description to avoid any wrong purchase. Please check your part pictures with our pictures, especially the plug, it must be completely same. Or it will not fit your car
  • Application: Marsflex Oxygen Sensor 234-5060 fit for Nissan 2004-2009 Quest V6 3.5L, 2004-2008 Maxima 3.5L, 2004-2007 Murano V6 3.5L, 2004-2006 Altima V6 3.5L, 2005-2006 Armada V8 5.6L, 2005-2006 Frontier V6 4.0L, 2004-2006 Pathfinder V6 4.0L, 2004 Pathfinder V8 5.6L, 2004-2006 Titan V8 5.6L, 2005-2006 XterraV6 4.0L, 2000-2002 Sentra L4 1.8L. INFINITI 2006-2010 M45 V8 4.5L, 2008-2010 M45 V8 4.5L, 2006-2007 M45 Sport V8 4.5L, 2006-2008 FX45 V8 4.5L, 2006 Q45 V8 4.5L, 2004-2006 QX56 V8 5.6L
  • Durable and Reliable: Marsflex O2 sensors feature aerospace-grade stainless steel housing & high-temp ceramic core (-40℃~950℃ resistance). Laser-sealed IP67 protection withstands dust/water. Rigorously tested (10,000hrs + 500 thermal cycles) with anti-interference chip for precise signals. 80,000-100,000km lifespan, backed by12-month warranty. Proven durability worldwide!
  • Easy Installation: Total length 17.9 inch. Manufactured to OE specification fit form and function, durable and easy installation
  • Warranty: 1-YEAR WARRANTY. ALL Marsflex oxygen sensors are extensively tested during manufacturing to guarantee quality, reliability, and above all, always meet or exceed the original equipment specifications
  • Improve Fuel Economy: Marsflex oxygen sensor helps optimize fuel efficiency by providing accurate real-time data to your engine’s ECU, ensuring the ideal air-fuel ratio (14.7:1). Over time, old sensors degrade, causing incorrect fuel mixtures (too rich or too lean). Replacing them with a high-precision Marsflex sensor restores proper combustion, potentially improving fuel economy by 5-15% while reducing emissions. For best performance, we recommend replacement every 60,000–80,000 km


Product Description

Oxygen sensor 234-9009
o2 sensor 234-9009
Replace oxygen sensor
Oxygen sensor notice

  • Heated oxygen sensors should be checked or replaced every 60,000 miles, while unheated oxygen sensors should be checked or replaced every 30,000 miles

  • It is best to replace O2 sensors in pairs. Because, replacing one sensor will cause the ECU to set a code for the other sensors. This is because the new sensor switching activity is much faster than that of the older aged sensors

  • If you are using an open end wrench, try an O2 socket. If this fails, try a long ratchet or breaker bar in conjunction with your socket to generate more torque. After the sensor is removed, be sure to use a thread cleaner to clean up the bung threads

  • 1 Oxygen sensor circuit failure

    2 The mixture is too rich

    3 The mixture is too lean

    4 The three-way catalytic converter is damaged or fails

    5 Damaged ECM

  • Marsflex oxygen sensor is consistent with OEM, please refer to the page information for compatibility information. You can check 'Amazon confirmed it' for confirmation, or provide us with your vehicle information and we will confirm it for you.


saul osuna zambrano
Reviewed in the United States on May 17, 2025
The sensor is working good and fit to my car.
thegreatreviewbro
Reviewed in the United States on March 2, 2025
Fixed my check engine light. If you have a faulty sensor this will more then likely fix your problem. Came with thread locker already applied ready to go.
Mopar_71
Reviewed in the United States on March 12, 2025
Took care of the bank 1 error I was getting on a 2006 Nissan pathfinder with a 4.0
marciel
Reviewed in the United States on February 6, 2025
It worked
Customer
Reviewed in the United States on June 18, 2024
Good price. Exactly fit
Rogelio R Gutierrez
Reviewed in the United States on December 20, 2024
2004 Nissan Titan perfect fit and code is cleared, truck runs smooth. Looks like OE, highly recommended. Ease of removal but make sure you buy the socket.
juan contreras
Reviewed in the United States on April 4, 2024
I changed it and the next’s day came on the light again
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