ACURA 21BYZV Oxygen Sensor

( Manufacturer Part Number: 21BYZV ), ( Part Type: Sensor ), ( Engine: 2.0l 4 Cyl K20z1 Fi Naturally Aspirated Gas ), ( Trim: Type-s, Base ), ( Compatible Make/model: Acura Rsx ), ( Compatible Years: 2006 2005 06 05 ), ( Fitment Info: Oxygen Sensor 2.0l, 2.4l 4-cylinder Oxygen Sensor Bank-. ), ( Important Info: 25054046; 22641aa390; 36531pnda21; 36531pnfg01; 36531ppa003; 3. ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review ACURA Replacement Oxygen Sensor fits RSX 2005–2006

21byzv Oxygen Sensor for Acura RSX (2005-2006)

The 21byzv Oxygen Sensor is a high-performance replacement part designed specifically for Acura RSX models manufactured between 2005 and 2006. This sensor plays a crucial role in the vehicle's fuel delivery and emission control systems.

Measuring approximately 2.5 inches in length and 1 inch in diameter, this oxygen sensor is made from premium materials to ensure durability and accuracy. Its ceramic sensing element is capable of detecting the amount of unburnt oxygen in the exhaust gases and converting it into an electrical signal. This data is sent to the vehicle's engine control unit (ECU), which adjusts the fuel mixture accordingly to maintain optimal combustion efficiency.

The 21byzv Oxygen Sensor features a hexagonal connector, ensuring a secure and reliable connection to the vehicle's wiring harness. Its high-temperature resistance makes it suitable for use in the harsh conditions of a vehicle's exhaust system. The sensor's resistance to corrosion and wear ensures that it will last longer than many stock sensors, reducing the need for frequent replacements.

The installation process for this oxygen sensor is straightforward. Simply remove the old sensor from the exhaust system, making sure to note the location of any gaskets or seals that need to be replaced. Next, thread the new sensor into place, ensuring that it is properly seated and securely fastened. Finally, connect the sensor's wiring harness to the vehicle's electrical system and tighten any mounting bolts.

By choosing the 21byzv Oxygen Sensor for your Acura RSX, you can restore optimal performance to your vehicle while also reducing harmful exhaust emissions. This sensor's durability and accuracy make it an excellent choice for drivers seeking a reliable and long-lasting replacement part.

Buying a 21byzv oxygen sensor for your Acura RSX model year 2005-2006 comes with both advantages and disadvantages. Let's examine each in detail.

1. Improved Fuel Efficiency: A faulty oxygen sensor can cause poor fuel economy. Replacing it with a new one can help maintain optimal fuel-air mixture, resulting in better fuel efficiency.

2. Enhanced Engine Performance: A new oxygen sensor can help your engine run more efficiently by accurately measuring the amount of oxygen in the exhaust gases. This results in improved engine performance, smoother idle, and better throttle response.

3. Longer Lifespan: A high-quality aftermarket oxygen sensor, like the 21byzv, can last longer than the original equipment manufacturer (OEM) sensor. This can save you money in the long run.

1. Installation Complexity: Installing an aftermarket oxygen sensor can be more complex than installing an OEM sensor. You may need specialized tools and knowledge to properly install it.

2. Risk of Incompatibility: Not all aftermarket oxygen sensors are 100% compatible with all vehicles. There is a risk that the 21byzv sensor may not work perfectly with your specific Acura RSX.

3. Cost: While the long-term savings can be significant, the upfront cost of a high-quality aftermarket oxygen sensor can be higher than an OEM sensor.

The decision to buy a 21byzv oxygen sensor for your Acura RSX 2005-2006 depends on your priorities. If you value improved fuel efficiency, enhanced engine performance, and a potentially longer lifespan, then the advantages may outweigh the disadvantages. However, if you lack the installation knowledge or are concerned about compatibility and upfront cost, then you may want to consider sticking with an OEM sensor. Ultimately, it's important to weigh the benefits and drawbacks before making a decision.

If you have the installation knowledge, are comfortable with the potential risks, and value the long-term benefits, then the 21byzv oxygen sensor could be a good choice for you. If not, it may be wiser to stick with an OEM sensor or consult a professional mechanic for advice.

Details:

Replacement Oxygen Sensor fits Acura RSX 2005 - 2006 21BYZV: Brand: condition: New Notes: 2.0L, 2.4L 4-Cylinder - Bank-1 Sensor-1; Upstream Remark: 25054046; 22641AA390; 36531PNDA21; 36531PNFG01; 36531PPA003; 36531PRBA11; 36531PZDA01, Detailed Applications Years: Vehicle: Sub model: Engine: Transmission: 2005 - 2006 Acura RSX Type-S2.0L 4 Cyl K20Z1 FI Naturally Aspirated GAS Bank-1 Upstream, RSXBase2.0L K20A3 -1.

part #: 21byzv price

• $50.83

specifications acrasensor:

• for models: Rsx
• for makes: Acura
• for years: 2005-2006
• mpn: 21byzv
• part type: Sensor
• engine: 2.0l 4 Cyl K20z1 Fi Naturally Aspirated Gas
• trim: Type-s, Base
• compatible make/model: Acura Rsx
• compatible years: 2006 2005 06 05
• fitment info: Oxygen Sensor 2.0l, 2.4l 4-cylinder Oxygen Sensor Bank-.
• important info: 25054046; 22641aa390; 36531pnda21; 36531pnfg01; 36531ppa003; 3.
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

offer acrasensor:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: March 29, 2026

shipping acrasensor:

• class: Economy
• type: Fixed
• service: Economy
• transit: 3-6 Days
• cost: $0.00

returns acrasensor:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

seller acrasensor:

• city: San Diego, California
• rating: 99.2%
• # reviews: 23550

general acrasensor:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Air Intake Fuel Sensors

payments acrasensor:

• credit card: Diners-club
• wallet: Paypal
• other

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