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2004 Subaru Legacy 1-Pc Oxygen Sensor Downstream 4-Pin A-Premium OS227
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2004 Subaru Legacy 1-Pc Oxygen Sensor Downstream 4-Pin A-Premium OS227

Part # OS227
Item # 10031364
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Specifications

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Note
Oxygen Senor - B1S2 Indicates Bank 1 Sensor 2.
【Note-1】For 2000-2001 Legacy & Outback, fits Automatic Transmission only, Not fits Manual Transmission.
【Note-2】For 1999 Legacy, it fits the model without California Emissions.

Features

A-Premium Aftermarket Oxygen Sensor: Multiple Options Available
With A-Premium, you have a variety of expertly engineered Oxygen Sensor options to suit your vehicle's needs. Each replacement is backed by a 3-Year unlimited mileage warranty for peace of mind. Use our Vehicle Selector to explore multiple options and find the perfect fit.
  • Installation Position: Downstream
  • 1-PC A-Premium Oxygen Sensor
  • Adapted to accurately meet the specifications of your vehicle.
  • Fabricated with advanced technology for optimal wear and corrosion resistance.
  • Demonstrates capability to boost engine output and promote fuel economy.
  • Developed to conform to high-end safety and performance benchmarks.

User-Friendly Assembly. A-Premium Oxygen Sensors are engineered for easy installation without alterations or specialized equipment—plug them in seamlessly.
Long-lasting Protection. These A-Premium Oxygen Sensors feature resilient coatings and wiring that are resistant to heat, moisture, and debris, focusing on sustained performance and sensor integrity over time.
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Specifications

Part interchange

Part numbers listed below indicate interchangeable parts. These parts share the same size, parameter, function and compatibility. However, please note that items from different brands may have minor variations.
25024373, 250-24373 - WALKER PRODUCTS
22690AA43A, 22690 AA43A, 22690-AA43A - SUBARU
22690AA73A, 22690 AA73A - SUBARU

Compatibility

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This part is compatible with (9)vehicles
All
Subaru
Year
Make
Model
2002 - 2004SubaruLegacy
2001 - 2001SubaruOutback
1999 - 1999SubaruLegacy
2000 - 2000SubaruOutback
1999 - 1999SubaruLegacy
2000 - 2000SubaruLegacy
2002 - 2004SubaruOutback
2001 - 2001SubaruLegacy
2003 - 2006SubaruBaja

Highlights

Note detail
B1S2(Bank 1 Sensor 2)

Shipping and warranty

  • Fast shipping

    The order will be dispatched within 1 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details.

  • Easy return

    Every order comes with a 90-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.

  • Warranty policy

    All parts are quality-tested to meet the top-tier aftermarket standards. Please click Warranty Policy for more details.

Why choose A-Premium.com

Free Return

Return your purchase within 90 days at no cost.

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Free standard shipping on all orders, no minimum required.

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Guaranteed Fit

We guarantee that all parts will fit your vehicle perfectly.

Reviews

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Attention to customers from California:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov/.