Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

2004 - 2010 Subaru Forester Air / Fuel Ratio Sensor - Upstream (NGK) NEW

Out of Stock
$ 151 .00

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
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
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Connector Color Grey
Connector Gender Male
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 37.75, 960.00

Vehicle Fitment Guide

This part fits the following vehicles:

Subaru 1 model (tapclick to expand)(tapclick to hide)
Forester 2004-2010 (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 2004 - 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 2004 - 2005, 2007, 2009 - 2010 H4 2.5L AWD Automatic
XS SUV 2004 - 2005 H4 2.5L AWD Manual
XS L.L. Bean Edition SUV 2005 H4 2.5L AWD Automatic
XSL SUV 2007, 2009 - 2010 H4 2.5L AWD Automatic
XT SUV 2004 - 2005, 2008 - 2009 H4 2.5L Turbo AWD Automatic
XT SUV 2004 - 2005 H4 2.5L Turbo AWD Manual
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 2005, 2010 H4 2.5L Turbo AWD Automatic
XT Premium SUV 2005 H4 2.5L Turbo AWD Manual
XT Sports SUV 2010 H4 2.5L Turbo AWD Automatic
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: 2004 2005 2006 2007 2008 2009 2010

Fits Models: Forester

Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

×

Search by Vehicle

1
2
3
Added to cart · Part