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2004, 2003 Subaru Outback Air / Fuel Ratio Sensor
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2003 - 2004 Subaru Outback Air / Fuel Ratio Sensor - Upstream (NGK) NEW

$ 302 .52

Product Notes

Position: Upstream
B1S1 OE Equivalent Design
Direct Fit 4-Wire A/F Sensor
NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Brand: NGK
Condition: New
See Other Subaru Outback Air / Fuel Ratio 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
Connector Color Grey
Connector Gender Female
Connector Shape Rectangular
Grade Type Standard Replacement
Heated Yes
Hex Size 7/8" (22mm)
Sensor Type Wide-band
Technology 4-wire A/f Sensor
Terminal Gender Female
Terminal Quantity 4
Terminal Type Blade
Thread Diameter 18.00
Wire Quantity 4
Wiring Harness Length 22.00, 560.00

Vehicle Fitment Guide

This part fits the following vehicles:

Subaru 1 model (tapclick to expand)(tapclick to hide)
Outback 2003-2004 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Wagon 2003 - 2004 H4 2.5L AWD Automatic & Manual
H6 Sedan 2003 - 2004 H6 3.0L AWD Automatic
H6 Sedan 2003 H6 3.0L AWD Manual
H6 Wagon 2003 - 2004 H6 3.0L AWD Automatic
H6 Wagon 2003 H6 3.0L AWD Manual
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 2003 - 2004 H6 3.0L AWD Automatic
L.L. Bean Wagon 2003 H6 3.0L AWD Manual
Limited Sedan 2003 - 2004 H4 2.5L AWD Automatic & Manual
Limited Wagon 2003 - 2004 H4 2.5L AWD Automatic & Manual
VDC Sedan 2003 H6 3.0L AWD Automatic & Manual
VDC Wagon 2003 H6 3.0L 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.
NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Fits Years: 2003 2004

Fits Models: Outback

Go-Parts Garage · Featured Guide

Subaru Outback Air/Fuel Ratio Sensor: A Guide for 2000-2010 Models

If your Outback's fuel economy is dropping or the check engine light is on, your front air/fuel sensor could be the reason.

Read Full Guide →
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