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  2. sku: 14089420451553722
  3. MAC AUTO 139403

MAC AUTO PARTS 139403 Rear Front Armada Oxygen Sensors 25025005 QX56 5.6L

fits model: Titan. year: 2004–2006.

139403 Mac Auto Parts For 2004-2006 Qx56 Armada Titan 5.6l 4 Front And Rear Oxygen Sensors

( Brand: Mac Auto Parts ), ( Part Type: Sensor ), ( Manufacturer Part Number: 139403 ), ( Ipn: 25025005 ), ( Placement On Vehicle: Left, Right, Front, Rear ), ( Manufacturer Warranty: 10 Years ), ( Fitment Type: Direct Replacement )

Review MAC AUTO PARTS Armada 5.6l Front And Rear Oxygen Sensors fits TITAN 2004–2006

Introducing the Mac Auto Parts 139403 Oxygen Sensor Kit, specifically designed for 2004-2006 models of the Infiniti QX56, Armada, and Titan with a 5.6L 5.6i V8 engine. This top-tier oxygen sensor kit is an essential upgrade for maintaining optimal engine performance and fuel efficiency.

The Mac Auto Parts 139403 kit includes both front and rear oxygen sensors. These sensors play a critical role in your vehicle's emissions system by monitoring the air-fuel mixture in the exhaust gases. By measuring the amount of oxygen in the exhaust, the sensors help the engine's computer adjust the fuel-air mixture for maximum efficiency and cleaner emissions.

These oxygen sensors are engineered to provide superior accuracy and durability. They feature advanced ceramic sensor elements, which offer improved sensitivity and faster response times compared to traditional zirconia sensors. The sensors' robust design ensures long-lasting performance, even in harsh driving conditions.

Each oxygen sensor is equipped with a built-in heating element, which helps to ensure that the sensors operate efficiently in cold temperatures. This feature is particularly important for drivers who live in areas with severe winters, as it can help improve drivability and reduce emissions during cold start-ups.

The Mac Auto Parts 139403 oxygen sensor kit is a direct fit for the 2004-2006 Infiniti QX56, Armada, and Titan 5.6L models. The sensors come with all necessary hardware for installation, making the process straightforward and hassle-free. With this kit, you can trust that you're getting a perfect fit and reliable performance.

By upgrading your vehicle with the Mac Auto Parts 139403 oxygen sensor kit, you'll not only improve your engine's efficiency and fuel economy, but you'll also help ensure that your vehicle meets emissions standards, keeping it in compliance with local and federal regulations.

In conclusion, the Mac Auto Parts 139403 oxygen sensor kit is an essential upgrade for any 2004-2006 Infiniti QX56, Armada, or Titan 5.6L model. Its advanced ceramic sensors, built-in heating elements, and direct fit design make it a superior choice for maintaining optimal engine performance, improving fuel efficiency, and ensuring emissions compliance.

Buying Mac OEM 139403 Oxygen Sensors for 2004-2006 QX56, Armada, and Titan 5.6L: A Comprehensive Analysis

Introduction:

The Mac OEM 139403 oxygen sensors are designed for use in specific vehicles, including the 2004-2006 Infiniti QX56, Nissan Armada, and Nissan Titan with a 5.6L engine. In this analysis, we will discuss the advantages and disadvantages of purchasing these sensors to help you make an informed decision.

Advantages:

1. Original Equipment Manufacturer (OEM): The Mac OEM 139403 sensors are designed and manufactured by the same company that produced the original sensors for your vehicle. This ensures a perfect fit, optimal performance, and compatibility with your vehicle's on-board diagnostics system (OBD II).

2. Reliability: OEM sensors are engineered to meet the highest standards and are built to last. They provide accurate readings and help maintain the overall performance and longevity of your engine.

3. Warranty: OEM sensors often come with extended warranties, offering peace of mind and protection against potential defects or failures.

4. Fuel Efficiency: A faulty oxygen sensor can cause poor fuel economy. Replacing it with a new OEM sensor can help restore optimal fuel efficiency and save you money on fuel costs in the long run.

5. Emissions Compliance: The Mac OEM 139403 sensors help maintain proper engine performance, ensuring your vehicle meets emissions regulations.

Disadvantages:

1. Cost: OEM sensors can be more expensive than aftermarket sensors due to their high-quality materials, advanced technology, and superior engineering. However, their long-term performance and reliability may justify the investment.

2. Availability: OEM sensors may not always be readily available at local retailers or auto parts stores, requiring you to order them online or through a dealership.

3. Installation: Installing OEM sensors may require specialized tools and knowledge, potentially increasing the overall cost of the repair.

Conclusion:

When considering the purchase of Mac OEM 139403 oxygen sensors for your 2004-2006 Infiniti QX56, Nissan Armada, or Nissan Titan with a 5.6L engine, it's essential to weigh the advantages and disadvantages. The OEM sensors offer superior reliability, optimal performance, and compatibility with your vehicle's on-board diagnostics system. However, they may be more expensive and less readily available compared to aftermarket sensors. Ultimately, the decision to purchase OEM sensors depends on your personal preferences, budget, and priorities. If you value the highest quality and performance, OEM sensors are the best choice. However, if you're looking for a more cost-effective solution, aftermarket sensors may be a suitable alternative.

Recommendation:

If you're confident in your mechanical abilities and have access to the required tools, purchasing aftermarket oxygen sensors could save you money. However, if you prefer the peace of mind that comes with using OEM parts, or if your vehicle is under warranty, it's recommended to purchase the Mac OEM 139403 oxygen sensors from a trusted supplier or your dealership.

specifications mufflermooch:

  • for models: Titan
  • for years: 2004-2006
  • brand: Mac Auto Parts
  • part type: Sensor
  • manufacturer part number: 139403
  • interchange part number: 25025005
  • placement on vehicle: Left, Right, Front, Rear
  • manufacturer warranty: 10 Years
  • fitment type: Direct Replacement

general mufflermooch:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters

offer mufflermooch:

  • quantity: 10
  • options: Ship-to-home
  • sold: 0
  • started: May 23, 2026
  • availability: In Stock

seller mufflermooch:

  • # reviews: 196991
  • rating: 99.5%

payments mufflermooch:

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shipping mufflermooch:

  • class: Expedited
  • transit: 6-10 Days
  • service: Expedited
  • cost: $0.00
  • type: Fixed

returns mufflermooch:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 60 Days
for models: titan, for years: 2004-2006, part type: sensor, placement on vehicle: left, right, front, rear, manufacturer warranty: 10 years, fitment type: direct replacement,
category: auto parts > car truck parts accessories > exhaust emission systems > catalytic converters, sku: 14089420451553722,

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