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  3. AISIN OXSH-00043

AISIN OXSH-00043 Upstream Oxygen Sensor

fits model: Tl, Rl, Nsx, Legend. make: Acura. year: 1991–2004.

Oxsh-00043 Aisin Upstream Oxygen Sensor For Acura Tl Rl Nsx Legend 1991-2004

( Brand: Aisin ), ( Manufacturer Part Number: OXSH-00043 ), ( Type: Oxygen Sensor ), ( Placement On Vehicle: Upstream ), ( Oe/oem Part Number: 36531p5a003, 36531pfa003, 36531p5g003, 36531pr7a01, 36531p5aa01 ), ( Manufacturer Warranty: 1 Year ), ( California Prop 65 Warning: Yes ), ( Terminal Gender: Male ), ( Connector Shape: Square ), ( Engine: V6 3.2l, V6 3.5l, V6 3.0l ), ( Overall Length: In ), ( Quantity: One Piece ), ( Fitment Type: Direct Replacement )

Review AISIN Upstream Oxygen Sensor Acura fits LEGEND TL RL NSX 1991–2004

The AISIN OXS-00043 Upstream Oxygen Sensor is a crucial component in the emissions system of select Acura models, including the Tl, Rl, Nsx, and Legend, manufactured between the years 1991 and 2004. This sensor plays a significant role in maintaining optimal engine performance and ensuring compliance with emissions regulations.

The AISIN OXS-00043 Upstream Oxygen Sensor is designed to measure the amount of unburnt oxygen in the exhaust gases exiting the engine. This information is then used by the vehicle's engine control unit (ECU) to calculate the ideal fuel-air mixture for efficient combustion. By constantly monitoring the oxygen levels, the sensor helps reduce harmful emissions and ensures the engine operates at peak efficiency.

The sensor features a heated ceramic element that maintains a stable operating temperature, ensuring accurate oxygen readings under various driving conditions. The sensor's compact, cylindrical design ensures a precise fit in the designated location within the exhaust system. The sensor's electrical connectors are securely sealed, providing protection against water intrusion and other environmental hazards.

The AISIN OXS-00043 Upstream Oxygen Sensor is a direct replacement for the original equipment sensor, ensuring a perfect fit and function. The sensor comes with all necessary hardware for installation, making the replacement process straightforward and hassle-free.

In summary, the AISIN OXS-00043 Upstream Oxygen Sensor is an essential component for maintaining the emissions system and overall performance of select Acura models. Its precision design, accurate oxygen sensing capabilities, and robust construction make it a reliable and effective replacement option for the original sensor.

Upgrading Your Acura: Pros and Cons of Installing an AISIN OXS-00043 Upstream Oxygen Sensor

Introduction:

Upgrading the oxygen sensors in your Acura vehicle can improve its fuel efficiency and overall performance. One such option is the AISIN OXS-00043 upstream oxygen sensor, designed to fit various Acura models from 1991 to 2004, including the TL, RL, NSX, and Legend. In this article, we'll discuss the potential advantages and disadvantages of installing this sensor in your Acura.

Pros:

1. Improved Fuel Efficiency: A new oxygen sensor ensures accurate oxygen readings for the engine control unit (ECU), which can lead to more efficient fuel consumption.

2. Enhanced Engine Performance: By providing precise oxygen data, the AISIN OXS-00043 sensor can help your Acura engine run smoother and more effectively, ultimately improving its overall performance.

3. Potential to Pass Emissions Testing: A faulty oxygen sensor can cause your vehicle to fail emissions testing. Installing a new, high-quality sensor like the AISIN OXS-00043 can help ensure your Acura passes these tests.

4. Durability: The AISIN OXS-00043 sensor is designed to last longer than the stock sensor, reducing the need for frequent replacements.

Cons:

1. Cost: Upgrading to a high-quality oxygen sensor like the AISIN OXS-00043 can be more expensive than installing a stock sensor.

2. Installation Complexity: Depending on your mechanical skills and experience, installing the oxygen sensor may require professional assistance, adding to the overall cost.

3. Potential for Unintended Consequences: While the AISIN OXS-00043 sensor is designed to improve performance, there is a small risk that it could cause unintended consequences, such as check engine lights or drivability issues. It's essential to ensure that the sensor is installed correctly to minimize these risks.

Conclusion:

In conclusion, upgrading your Acura's upstream oxygen sensor with the AISIN OXS-00043 offers several advantages, including improved fuel efficiency, enhanced engine performance, and potential emissions test passing. However, it also comes with some drawbacks, such as cost and potential installation complexity. Ultimately, the decision to install this sensor depends on your personal priorities, budget, and mechanical skills. If you value improved performance and long-term savings, then the AISIN OXS-00043 upstream oxygen sensor may be a worthwhile investment for your Acura.

Recommendation: If you decide to install the AISIN OXS-00043 upstream oxygen sensor in your Acura, be sure to follow these recommendations:

1. Purchase the sensor from a reputable supplier to ensure its authenticity and quality.

2. Consult your vehicle's service manual for installation instructions.

3. If you're not confident in your mechanical abilities, consider hiring a professional mechanic for installation.

4. Monitor your vehicle's performance after installation and address any concerns promptly.

Details:

part #: oxsh00043 price

  • $39.99

specifications acrasensor:

  • for models: Tl, Rl, Nsx, Legend
  • for makes: Acura
  • for years: 1991-2004
  • brand: Aisin
  • mpn: Oxsh-00043
  • type: Oxygen Sensor
  • placement on vehicle: Upstream
  • oe/oem part number: 36531p5a003, 36531pfa003, 36531p5g003, 36531pr7a01, 36531p5aa01
  • manufacturer warranty: 1 Year
  • california prop 65 warning: Yes
  • terminal gender: Male
  • connector shape: Square
  • engine: V6 3.2l, V6 3.5l, V6 3.0l
  • overall length: In
  • quantity: One Piece
  • fitment type: Direct Replacement

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  • availability: In Stock
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  • started: March 3, 2026
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  • Car Truck Parts Accessories > Air Fuel Delivery > Air Intake Fuel Sensors

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for models: tl, rl, nsx, legend, for makes: acura, for years: 1991-2004, type: oxygen sensor, placement on vehicle: upstream, oe/oem part number: 36531p5a003, 36531pfa003, 36531p5g003, 36531pr7a01, 36531p5aa01, manufacturer warranty: 1 year, california prop 65 warning: yes, terminal gender: male, connector shape: square, engine: v6 3.2l, v6 3.5l, v6 3.0l, overall length: in, quantity: one piece, fitment type: direct replacement,
category: auto parts > car truck parts accessories > air fuel delivery > acura air intake fuel sensors, sku: 5803433251932663,
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