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Item #:
82358963
Dropwater 234-4368 234-4601 Upstream and Downstream Oxygen Sensors Replacement for Acura 2001-2002 Mdx,for Honda 2003 2004 Pilot 3.5L Upper and Lower
Item #:
82358963
TZS 144051
Price Details
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Order now and get it around Tuesday, July 14
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Easy to install on your vehicle, and come with pre-coated threads to assist installation.
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What Stands Out
Wide Compatibility
Designed specifically for Acura MDX (2001-2002) and Honda Pilot (2003-2004), ensuring a perfect fit and optimized performance for vehicles using 3.5L engines.
Improved Fuel Efficiency
Replaces worn-out oxygen sensors to restore accurate readings, enhancing engine performance and fuel efficiency, which saves money in the long run.
Durable Construction
Manufactured with high-quality materials for longevity and reliability, providing peace of mind with a dependable solution that meets or exceeds original equipment standards.
Product Details
| Item Weight | 1.5 lbs (680 grams) |
Who Should Buy?
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Vehicle Owners
Ideal for owners of Acura MDX 2001-2002 and Honda Pilot 2003-2004 needing O2 sensor replacements.
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DIY Mechanics
Perfect for DIY enthusiasts looking to replace oxygen sensors without professional assistance.
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Budget-Conscious Users
Great option for those seeking affordable alternatives to expensive dealership sensors.
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New Vehicle Owners
Not suitable for owners of newer models as they may need different sensor components.
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Non-Technical Users
May not suit individuals uncomfortable with DIY repairs or lacking mechanical skills.
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Performance Seekers
Not ideal for users looking for high-performance aftermarket sensors for enhanced vehicle capabilities.
Product Description
Dropwater 234-4368 234-4601 Upstream and Downstream Oxygen Sensors Replacement for Acura 2001-2002 Mdx,for Honda 2003 2004 Pilot 3.5L Upper and Lower O2 Sensors
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are upstream and downstream oxygen sensors?
Answer: Upstream and downstream oxygen sensors are integral components of your vehicle's emissions system. The upstream sensor, typically located before the catalytic converter, monitors the air-fuel mixture entering the engine. The downstream sensor, found after the catalytic converter, evaluates the converter's effectiveness by measuring exhaust gases. This differentiation is crucial as it influences fuel efficiency and emissions control. For instance, if the upstream sensor detects a lean condition, it can prompt the engine control unit to adjust the fuel injection, optimizing performance. -
Question:
What are the signs that I need to replace my O2 sensors?
Answer: Common signs that signify a need for O2 sensor replacement include poor fuel economy, fluctuating engine performance, and illuminated check engine lights. Additionally, if you experience rough idling or your vehicle fails emissions tests, it may be time to replace your oxygen sensors. These symptoms often indicate that the sensors are not accurately detecting exhaust levels, thereby affecting engine performance. Regular checks can prevent further complications, enhancing vehicle reliability and efficiency. -
Question:
Will replacing the O2 sensors improve my vehicle’s performance?
Answer: Yes, replacing faulty O2 sensors can significantly enhance your vehicle’s performance. These sensors provide critical data to your engine’s computer, ensuring optimal fuel combustion and reducing emissions. When sensors are working correctly, you can experience smoother engine operation, improved fuel efficiency, and reduced exhaust emissions. For example, if the upstream O2 sensor is malfunctioning, the engine may run rich, wasting fuel and increasing pollutant output. A fresh sensor remedy this inefficiency. -
Question:
How do I know if I need to install both upper and lower O2 sensors?
Answer: If you detect symptoms such as poor acceleration or inconsistent idling, it may be necessary to check both upper and lower O2 sensors. It’s often recommended to replace both sensors simultaneously to ensure that your vehicle operates optimally. Generally, if one sensor has failed, the other is likely close to doing so, especially if the vehicle has high mileage. Replacing them together can save on labor and prevent further emissions issues. -
Question:
Can I replace O2 sensors myself?
Answer: Yes, many users find replacing O2 sensors a manageable DIY project, provided they have basic mechanical skills and tools. Generally, it involves locating the sensors, unplugging the wire connectors, and removing the sensors using an O2 sensor socket. However, it’s crucial to keep safety in mind and ensure the engine is cool before beginning. For those unfamiliar with vehicle maintenance, consulting a manual or video tutorial can be helpful for guidance. -
Question:
What is the expected lifespan of O2 sensors?
Answer: Oxygen sensors typically last between 60,000 to 100,000 miles, though this can vary based on driving conditions and vehicle maintenance. Factors such as exposure to contaminants, engine performance issues, and the quality of fuel can influence lifespan. Regular maintenance and using high-quality fuel can prolong their functionality. Monitoring your vehicle’s performance can help catch sensor issues early, preserving engine health. -
Question:
What should I look for when purchasing replacement O2 sensors?
Answer: When purchasing replacement O2 sensors, consider factors like compatibility with your specific vehicle make and model, sensor design (such as heated vs. unheated), and manufacturer reputation. It's advisable to buy sensors that meet OEM specifications for quality assurance. Look for products that offer longevity, efficiency, and customer reviews to gauge reliability. This ensures optimal performance and compatibility with your vehicle's emissions system. -
Question:
How to maintain O2 sensors to extend their lifespan?
Answer: To extend the lifespan of your O2 sensors, regular vehicle maintenance is key. This includes using fuel with sufficient octane levels and avoiding high levels of contaminants in the engine. Ensuring that the exhaust system is in good condition and that there are no leaks will also protect O2 sensors. Monitoring engine performance signals and addressing issues promptly can prevent premature sensor failure, enhancing overall vehicle health. -
Question:
How can a malfunctioning O2 sensor affect my vehicle’s emissions?
Answer: A malfunctioning O2 sensor can significantly increase your vehicle's emissions, leading to higher levels of hydrocarbons and carbon monoxide being released into the environment. This is because faulty sensors fail to provide accurate data to the engine control unit, potentially causing an overly rich or lean air-fuel mixture. Consequently, not only does this impact fuel efficiency, but it can also result in your vehicle failing emissions tests, highlighting the importance of functional O2 sensors. -
Question:
Where can I buy 234-4368 234-4601 Upstream and Downstream Oxygen Sensors for my Acura or Honda?
Answer: You can conveniently purchase the 234-4368 234-4601 Upstream and Downstream Oxygen Sensors replacement for Acura MDX and Honda Pilot on Ubuy. Ubuy offers a wide selection of automotive parts, including high-quality O2 sensors designed for specific vehicle models, ensuring compatibility and reliability. Shopping on Ubuy allows you to explore various options and find the best fit for your automotive needs in Tanzania.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
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“Not madly expensive like I thought, and much quicker than promised.”
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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TZS 144051
Order now and get it around Tuesday, July 14
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Compatible with Acura MDX 2001-2002 and Honda Pilot 2003-2004 3.5L.
- Includes two oxygen sensors, both upstream and downstream.
- Direct replacement; no modifications needed for installation.
- Features durable materials including stainless steel shell and high-temperature rubber seals.
- Pre-coated threads facilitate effortless installation.
- Carefully check fitment and part pictures to ensure compatibility.
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