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Oxygen Sensor
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Oxygen Sensor - Upstream (Walker Products) for 2004-2011 Saab & Subaru NEW

$ 100 .11

Product Notes

Position: Upstream
B1S1
OE Replacement
Walker Products Engine Management and Oxygen/Air-Fuel sensors have been engineered and developed to be an Original Equipment Manufacturers replacement for many vehicles worldwide. Every part number is manufactured for the specific application, fitment position on the vehicle, and will provide the relevant diagnostic system feedback as required by the ECU.Newer vehicles will store fault codes in the ECU, some will relate to the affected sensor and its associated systems. A failed sensor might make itself known by causing the engine to run poorly, increase fuel consumption, exhaust emissions, or illuminating a (MIL) malfunction indicator light. The sensor, wiring harness, and connector should also be checked for physical damage. This will most likely also cause their operational life to be shortened.We are an Automotive ISO9001/TS 16949 certified company, with un-paralleled customer service, marketing, and shipping. Our electronic and paper catalogs are designed for today’s fast paced marketplace, along with our eye catching packaging. Since 1946, Walker Products has been the number one choice for the engine management sensors and fuel system components needed for your vehicle. © 2024 Walker Products Inc. All rights reserved.
Brand: Walker Products
Condition: New
See All Other Oxygen Sensors
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
CA Prop65 Nickel Warning: This Product Can Expose You To Chemicals, Including Nickel And Nickel Alloyed Stainless Steel, Which Are Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. Www.p65warnings.ca.gov
Connector Gender Female
Connector Shape Square
Heated Yes
Mounting Type Threaded
Terminal Gender Female
Thread Diameter 18.0
Wire Gauge Measurement 20.0
Wire Quantity 4

Vehicle Fitment Guide

This part fits the following vehicles:

Saab 1 model (tapclick to expand)(tapclick to hide)
9-2X 2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5i Wagon 2006 H4 2.5L AWD Automatic & Manual
Aero Wagon 2006 H4 2.5L Turbo AWD Automatic & Manual
Subaru 4 models (tapclick to expand)(tapclick to hide)
Forester 2006-2010 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5 X SUV 2008 H4 2.5L AWD Automatic & Manual
2.5 XS SUV 2008 H4 2.5L AWD Automatic & Manual
2.5 XS Premium SUV 2008 H4 2.5L AWD Automatic & Manual
2.5 XT SUV 2008 H4 2.5L Turbo AWD Automatic & Manual
Anniversary Edition SUV 2008 H4 2.5L AWD Automatic & Manual
Sports 2.5 X SUV 2008 H4 2.5L AWD Automatic & Manual
Sports 2.5 XT SUV 2008 H4 2.5L Turbo AWD Automatic & Manual
X SUV 2006 - 2010 H4 2.5L AWD Automatic & Manual
X L.L. Bean Edition SUV 2006 - 2008 H4 2.5L AWD Automatic
X Limited SUV 2009 - 2010 H4 2.5L AWD Automatic
X Premium SUV 2009 - 2010 H4 2.5L AWD Automatic & Manual
X Touring SUV 2009 - 2010 H4 2.5L AWD Automatic
X Touring SUV 2009 H4 2.5L AWD Manual
XS SUV 2007, 2009 - 2010 H4 2.5L AWD Automatic
XSL SUV 2007, 2009 - 2010 H4 2.5L AWD Automatic
XT SUV 2008 - 2009 H4 2.5L Turbo AWD Automatic
XT Limited SUV 2006 - 2010 H4 2.5L Turbo AWD Automatic
XT Limited SUV 2006 - 2008 H4 2.5L Turbo AWD Manual
XT Premium SUV 2010 H4 2.5L Turbo AWD Automatic
XT Sports SUV 2010 H4 2.5L Turbo AWD Automatic
Impreza 2006-2011 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.0R Sedan 2008 H4 2.0L AWD Automatic
2.5 GT Hatchback 2010 H4 2.5L Turbo AWD Automatic
2.5 GT Sedan 2009 - 2010 H4 2.5L Turbo AWD Automatic
2.5i Hatchback 2008 - 2011 H4 2.5L AWD Automatic & Manual
2.5i Sedan 2006 - 2011 H4 2.5L AWD Automatic & Manual
2.5i Wagon 2006 - 2007 H4 2.5L AWD Automatic & Manual
2.5i Limited Hatchback 2010 H4 2.5L AWD Automatic & Manual
2.5i Limited Sedan 2010 H4 2.5L AWD Automatic & Manual
2.5i Premium Hatchback 2010 - 2011 H4 2.5L AWD Automatic & Manual
2.5i Premium Sedan 2010 - 2011 H4 2.5L AWD Automatic & Manual
Outback Sport Hatchback 2008 - 2011 H4 2.5L AWD Automatic & Manual
Outback Sport Wagon 2006 - 2007 H4 2.5L AWD Automatic & Manual
R Hatchback 2011 H4 2.0L AWD Automatic CVT
R Hatchback 2009 - 2011 H4 2.0L AWD Automatic & Manual
R Sedan 2011 H4 2.0L AWD Automatic CVT
R Sedan 2009 - 2011 H4 2.0L AWD Automatic & Manual
Sport Hatchback 2008 - 2011 H4 2.5L AWD Automatic
Sport Hatchback 2008 - 2009 H4 2.5L AWD Manual
Sport Sedan 2008 - 2009 H4 2.5L AWD Automatic & Manual
WRX Hatchback 2008 - 2011 H4 2.5L Turbo AWD Manual
WRX Hatchback 2008 - 2010 H4 2.5L Turbo AWD Automatic
WRX Sedan 2006 - 2011 H4 2.5L Turbo AWD Manual
WRX Sedan 2006 - 2010 H4 2.5L Turbo AWD Automatic
WRX Wagon 2006 - 2007 H4 2.5L Turbo AWD Automatic & Manual
WRX GT Sedan 2010 H4 2.5L Turbo AWD Automatic
WRX Limited Hatchback 2010 - 2011 H4 2.5L Turbo AWD Manual
WRX Limited Sedan 2006 - 2007 H4 2.5L Turbo AWD Automatic
WRX Limited Sedan 2006 - 2007, 2010 - 2011 H4 2.5L Turbo AWD Manual
WRX Limited Wagon 2006 - 2007 H4 2.5L Turbo AWD Automatic & Manual
WRX Premium Hatchback 2009 - 2011 H4 2.5L Turbo AWD Manual
WRX Premium Sedan 2009 - 2011 H4 2.5L Turbo AWD Manual
WRX SE Sedan 2010 H4 2.5L Turbo AWD Manual
WRX STI Hatchback 2008 - 2011 H4 2.5L Turbo AWD Manual
WRX STI Sedan 2006 - 2007, 2011 H4 2.5L Turbo AWD Manual
WRX STI Limited Sedan 2007, 2011 H4 2.5L Turbo AWD Manual
WRX STI Special Edition Hatchback 2010 H4 2.5L Turbo AWD Manual
WRX TR Sedan 2006 - 2007 H4 2.5L Turbo AWD Manual
XV Hatchback 2011 H4 2.0L AWD Automatic CVT
Legacy 2004-2009 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.0 Sedan 2008 H4 2.0L AWD Automatic
2.0R Sedan 2009 H4 2.0L AWD Automatic
2.5i Sedan 2006 - 2009 H4 2.5L AWD Automatic & Manual
2.5i Wagon 2006, 2008 H4 2.5L AWD Automatic & Manual
2.5i Limited Sedan 2006 - 2009 H4 2.5L AWD Automatic
2.5i Limited Wagon 2007 H4 2.5L AWD Automatic
2.5i Special Edition Sedan 2007 - 2009 H4 2.5L AWD Automatic & Manual
2.5i Special Edition Wagon 2007 H4 2.5L AWD Automatic & Manual
2.5i Touring Sedan 2009 H4 2.5L AWD Automatic
3.0 Sedan 2008 H6 3.0L AWD Automatic
3.0 R Sedan 2009 H6 3.0L AWD Automatic
3.0 R Limited Sedan 2008 - 2009 H6 3.0L AWD Automatic
3.0 R Premier Sedan 2009 H6 3.0L AWD Automatic
Base Sedan 2009 H4 2.5L AWD Automatic
GT Sedan 2005 - 2008 H4 2.5L Turbo AWD Automatic
GT Sedan 2005 - 2006, 2008 H4 2.5L Turbo AWD Manual
GT Sedan 2004 H4 2.5L AWD Automatic & Manual
GT Wagon 2005 - 2006, 2008 H4 2.5L Turbo AWD Automatic & Manual
GT Wagon 2004 H4 2.5L AWD Automatic & Manual
GT Limited Sedan 2005, 2007 - 2009 H4 2.5L Turbo AWD Automatic & Manual
GT Limited Wagon 2005, 2007 H4 2.5L Turbo AWD Automatic & Manual
GT spec.B Sedan 2006 - 2009 H4 2.5L Turbo AWD Manual
L Sedan 2004 H4 2.5L AWD Automatic & Manual
L Wagon 2004 H4 2.5L AWD Automatic & Manual
L 35th Anniversary Sedan 2004 H4 2.5L AWD Automatic & Manual
L 35th Anniversary Wagon 2004 H4 2.5L AWD Automatic & Manual
Limited Sedan 2005, 2008 H4 2.5L AWD Automatic
Limited Sedan 2005 H4 2.5L AWD Manual
Limited Wagon 2005 H4 2.5L AWD Automatic & Manual
Touring Sedan 2008 H4 2.5L AWD Automatic & Manual
Touring Wagon 2008 H4 2.5L AWD Automatic & Manual
i Sedan 2005 H4 2.5L AWD Automatic & Manual
i Wagon 2005 H4 2.5L AWD Automatic & Manual
Outback 2004-2009 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5 XT Wagon 2008 H4 2.5L Turbo AWD Automatic & Manual
2.5i Wagon 2006 - 2009 H4 2.5L AWD Automatic & Manual
2.5i Basic Wagon 2007 H4 2.5L AWD Automatic & Manual
2.5i L.L. Bean Edition Wagon 2008 H4 2.5L AWD Automatic
2.5i Limited Sedan 2007 H4 2.5L AWD Automatic
2.5i Limited Wagon 2006, 2008 - 2009 H4 2.5L AWD Automatic
2.5i Limited Wagon 2006 H4 2.5L AWD Manual
2.5i Limited L.L. Bean Edition Wagon 2008 H4 2.5L AWD Automatic
2.5i Special Edition Wagon 2009 H4 2.5L AWD Automatic
3.0 R Wagon 2007 - 2008 H6 3.0L AWD Automatic
3.0 R Limited Wagon 2009 H6 3.0L AWD Automatic
3.0 R Premier Wagon 2009 H6 3.0L AWD Automatic
Base Wagon 2004, 2008 H4 2.5L AWD Automatic & Manual
H6 Sedan 2004 H6 3.0L AWD Automatic
H6 Wagon 2004 H6 3.0L AWD Automatic
H6 35th Anniversary Edition Wagon 2004 H6 3.0L AWD Automatic
H6 VDC Sedan 2004 H6 3.0L AWD Automatic
H6 VDC Wagon 2004 H6 3.0L AWD Automatic
L.L. Bean Wagon 2004 H6 3.0L AWD Automatic
Limited Sedan 2004 H4 2.5L AWD Automatic & Manual
Limited Wagon 2004 - 2005, 2008 H4 2.5L AWD Automatic
Limited Wagon 2004 - 2005 H4 2.5L AWD Manual
Premier Wagon 2008 H4 2.5L AWD Automatic
R Sedan 2005 H6 3.0L AWD Automatic
R Wagon 2006 H6 3.0L AWD Automatic
R L.L. Bean Edition Sedan 2006 - 2007 H6 3.0L AWD Automatic
R L.L. Bean Edition Wagon 2005 - 2008 H6 3.0L AWD Automatic
R VDC Limited Wagon 2006 H6 3.0L AWD Automatic
Touring Wagon 2008 H4 2.5L AWD Automatic
VDC Limited Wagon 2005 H6 3.0L AWD Automatic
XT Wagon 2005 - 2008 H4 2.5L Turbo AWD Automatic
XT Wagon 2005 - 2006 H4 2.5L Turbo AWD Manual
XT Limited Wagon 2005 - 2009 H4 2.5L Turbo AWD Automatic & Manual
i Wagon 2005 H4 2.5L AWD Automatic & Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Walker Products Engine Management and Oxygen/Air-Fuel sensors have been engineered and developed to be an Original Equipment Manufacturers replacement for many vehicles worldwide. Every part number is manufactured for the specific application, fitment position on the vehicle, and will provide the relevant diagnostic system feedback as required by the ECU.Newer vehicles will store fault codes in the ECU, some will relate to the affected sensor and its associated systems. A failed sensor might make itself known by causing the engine to run poorly, increase fuel consumption, exhaust emissions, or illuminating a (MIL) malfunction indicator light. The sensor, wiring harness, and connector should also be checked for physical damage. This will most likely also cause their operational life to be shortened.We are an Automotive ISO9001/TS 16949 certified company, with un-paralleled customer service, marketing, and shipping. Our electronic and paper catalogs are designed for today’s fast paced marketplace, along with our eye catching packaging. Since 1946, Walker Products has been the number one choice for the engine management sensors and fuel system components needed for your vehicle. © 2024 Walker Products Inc. All rights reserved.

Fits Years: 2004 2005 2006 2007 2008 2009 2010 2011

Fits Models: 9-2X, Forester, Impreza, Legacy, Outback

Go-Parts Garage · Featured Guide

A Subaru Owner's Guide to Oxygen Sensors for the 2000-2010 Outback

A bad oxygen sensor can cause a check engine light, poor fuel economy, and rough running.

Read Full Guide →

⚠️ Related Trouble Codes (OBD-II)

25 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

P0030
Heater Circuit Failure Causes & Fixes
2007-2011 Subaru Impreza
P0036
Rear O2 Sensor Heater Circuit Causes and Fixes
2008-2011 Subaru Impreza
P0037
Rear O2 Sensor Heater Fixes
2008-2011 Subaru Impreza
P0037
Rear O2 Sensor Heater Circuit Causes and Fixes
2005-2009 Subaru Legacy
P0131
Causes and Fixes for O2 Sensor Low Voltage
2008-2011 Subaru Impreza
P0131
Exhaust Leak or Bad O2 Sensor?
2004-2009 Subaru Outback
P0131
Causes and Fixes for O2 Sensor Low Voltage
2005-2009 Subaru Legacy
P0132
Front O2 Sensor High Voltage Causes and Fixes
2005-2009 Subaru Outback
P0132
High Voltage O2 Sensor Causes and Fixes
2005-2009 Subaru Legacy
P0132
Front O2 Sensor High Voltage Causes and Fixes
2005-2009 Subaru Legacy
P0133
Slow O2 Sensor Response Causes and Fixes
2005-2009 Subaru Outback
P0134
Front A/F Sensor Failure Causes and Fixes
2005-2009 Subaru Legacy
↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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