WALKER 44ZZKXZ52 Upstream Oxygen Sensor

( Brand: Walker ), ( Manufacturer Part Number: 44ZZKXZ52 ), ( Type: Oxygen Sensor ), ( Placement On Vehicle: Upstream ), ( Fits 1: 2002-2004 Acura Rsx ), ( Fit Note: Oe Base Sensor B1s1 ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review WALKER Upstream Oxygen Sensor Acura fits RSX 2002–2004

Introducing the Walker 44ZZKXZ52 Upstream Oxygen Sensor, a premium replacement part designed specifically for Acura RSX models from the years 2002, 2003, and 2004. This oxygen sensor is engineered to meet or exceed original equipment manufacturer (OEM) specifications, ensuring reliable and efficient operation.

The Walker 44ZZKXZ52 is a critical component of your vehicle's exhaust gas recirculation (EGR) and closed-loop fuel control systems. It continuously monitors the oxygen content in your car's exhaust gases and transmits this data to the engine control module (ECM), enabling the engine to adjust fuel mixture and air-fuel ratio for optimal combustion.

This Walker oxygen sensor features a robust, zirconia sensor element that is resistant to thermal shock and can withstand extreme temperatures. The sensor's advanced design ensures precise and stable output, even under heavy driving conditions.

The Walker 44ZZKXZ52 Upstream Oxygen Sensor comes in an easy-to-install design, with a plug-and-play connection that requires no modifications to your vehicle's wiring harness. The sensor is also calibrated to work seamlessly with your Acura RSX's OEM ECM, ensuring a hassle-free installation process.

By choosing the Walker 44ZZKXZ52 Upstream Oxygen Sensor, you can enjoy peace of mind knowing that you've installed a high-quality replacement part in your vehicle. This oxygen sensor is backed by Walker's commitment to excellence and comes with a comprehensive warranty, providing you with the confidence and protection you deserve.

In summary, the Walker 44ZZKXZ52 Upstream Oxygen Sensor is a top-tier replacement part for your Acura RSX. It offers precise and stable output, robust construction, and easy installation, making it an excellent choice for maintaining the performance and efficiency of your vehicle.

Upgrading to a Walker 44ZZKXZ52 Upstream Oxygen Sensor for Acura RSX: A Detailed Analysis

The Walker 44ZZKXZ52 Upstream Oxygen Sensor is a popular aftermarket replacement for the original part in Acura RSX models from 2002 to 2004. This analysis covers the key pros and cons to help you make an informed decision about whether to upgrade to this sensor.

1. Enhanced Durability: The Walker 44ZZKXZ52 is designed with a more robust housing and a thicker heater element compared to the original sensor. This makes it more resilient against the harsh conditions inside the exhaust system and can potentially last longer.

2. Improved Sensitivity: This upgraded oxygen sensor offers increased sensitivity, which can lead to better fuel efficiency and improved engine performance by ensuring the engine's fuel-air mixture is optimally balanced.

3. OE-Equivalent Performance: The Walker 44ZZKXZ52 is designed to meet or exceed the original equipment (OE) specifications for the Acura RSX. This means you can expect consistent and reliable performance, ensuring your vehicle runs smoothly.

4. Cost-Effective: Although not the cheapest option, the Walker 44ZZKXZ52 is a cost-effective choice compared to other aftermarket sensors or paying for dealership repairs.

1. Potential Learning Period: Some users have reported that the Walker 44ZZKXZ52 may require a short learning period for the vehicle's engine management system to adapt to the new sensor. This can result in temporary check engine lights or rough idling, but these issues typically resolve themselves over time.

2. Possible Installation Challenges: Depending on your vehicle's condition and the tools you have available, installing the new oxygen sensor might be a bit more challenging than swapping out the stock part. Be prepared for potential obstacles, such as corroded connector pins or hard-to-reach sensor locations.

3. Minimal Visual Difference: Unlike some other aftermarket performance parts, there won't be any noticeable visual differences between the Walker 44ZZKXZ52 and the stock oxygen sensor once it's installed.

The Walker 44ZZKXZ52 Upstream Oxygen Sensor is a worthwhile investment for Acura RSX owners, offering enhanced durability, improved sensitivity, and OE-equivalent performance. While it may come with a small learning period and some installation challenges, the potential benefits far outweigh the drawbacks. By upgrading to the Walker 44ZZKXZ52, you can optimize your engine's performance, improve fuel efficiency, and enjoy long-term peace of mind.

If you're looking to upgrade your Acura RSX's upstream oxygen sensor, the Walker 44ZZKXZ52 is a solid choice. Its durability, sensitivity, and cost-effectiveness make it an excellent option for those seeking improved engine performance and reliability. Ensure you have the necessary tools and are prepared for a potential learning period and installation challenges before making the switch.

Details:

Upstream Oxygen Sensor Walker 44ZZKXZ52 for Acura RSX 2002 2004 2003: Position: Brand: condition: New, Notes OE Base B1S1, Detailed Applications , 2002 - 2004 RSX2.0L 4 Cl K20A2Manual. 12 Month Warranty.

part #: 44zzkxz52 price

• $176.15

specifications acrasensor:

• for models: Rsx
• for makes: Acura
• for years: 2002-2004
• brand: Walker
• mpn: 44zzkxz52
• type: Oxygen Sensor
• placement on vehicle: Upstream
• fits 1: 2002-2004 Acura Rsx
• fit note: Oe Base Sensor B1s1
• manufacturer warranty: 12 Month Warranty
• attention: Please Read All Notes To Confirm Fitment
• cs-sku: 400

payments acrasensor:

• other
• wallet: Apple-pay
• credit card: Diners-club

offer acrasensor:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: May 12, 2026
• availability: In Stock

shipping acrasensor:

• cost: $0.00
• type: Fixed
• service: Standard
• class: Standard
• transit: 3-7 Days

general acrasensor:

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

seller acrasensor:

• city: Fresno, California
• rating: 97.3%
• # reviews: 57978

returns acrasensor:

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

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