My Account About Us Help Desk
Go-Parts
Account About Us Help Desk
Cart 0
Your cart is empty
Add an item to see it appear here.
Oxygen Sensor
View 1
View 2
View 3
View 4
View 5

Oxygen Sensor - Upstream or Upstream Right (Walker Products) for 1999-2006 Mitsubishi NEW

$ 60 .98

Product Notes

Position: Upstream or Upstream Right (Passenger Side)
Calif-ESV
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
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
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, Male
Connector Shape Square
Heated Yes
Mounting Type Threaded
Sensor Type Narrow-band
Terminal Gender Male
Terminal Quantity 4
Terminal Type Spade
Thread Diameter 18.0
Wire Gauge Measurement 20.0
Wire Quantity 4

Vehicle Fitment Guide

This part fits the following vehicles:

Mitsubishi 3 models (tapclick to expand)(tapclick to hide)
Lancer 2003-2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
DE Sedan 2004 - 2006 L4 2.0L FWD Manual
ES Sedan 2003 - 2006 L4 2.0L FWD Automatic & Manual
Evolution Sedan 2003 - 2006 L4 2.0L Turbo AWD Manual
Evolution MR Sedan 2005 - 2006 L4 2.0L Turbo AWD Manual
Evolution RS Sedan 2005 - 2006 L4 2.0L Turbo AWD Manual
Evolution SE Sedan 2006 L4 2.0L Turbo AWD Manual
LS Sedan 2003 - 2006 L4 2.0L FWD Automatic
LS Diamond Sedan 2006 L4 2.4L FWD Automatic & Manual
LS Diamond Sedan 2005 - 2006 L4 2.0L FWD Automatic & Manual
OZ Rally Sedan 2003 - 2006 L4 2.0L FWD Automatic & Manual
Ralliart Sedan 2004 - 2006 L4 2.4L FWD Automatic & Manual
SE Sedan 2006 L4 2.0L FWD Automatic & Manual
Sportback Wagon 2004 L4 2.4L FWD Automatic
Sportback Ralliart Wagon 2004 L4 2.4L FWD Automatic
Montero 2001-2006 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Limited SUV 2003 - 2006 V6 3.8L 4WD Automatic
Limited SUV 2001 - 2002 V6 3.5L 4WD Automatic
XLS SUV 2003 - 2004 V6 3.8L 4WD Automatic
XLS SUV 2001 - 2002 V6 3.5L 4WD Automatic
Montero Sport 1999-2004 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
ES SUV 2001 - 2003 V6 3.0L 4WD Automatic
ES SUV 2000 - 2003 V6 3.0L RWD Automatic
ES SUV 1999 L4 2.4L RWD Manual
LS SUV 2004 V6 3.5L RWD/4WD Automatic
LS SUV 1999 - 2003 V6 3.0L RWD/4WD Automatic
LS SUV 1999 - 2000 V6 3.0L RWD/4WD Manual
Limited SUV 1999 - 2003 V6 3.5L RWD/4WD Automatic
XLS SUV 2002 - 2004 V6 3.5L RWD/4WD Automatic
XLS SUV 1999 - 2001 V6 3.0L RWD/4WD Automatic
XLS Premium SUV 2004 V6 3.5L RWD Automatic
XLS Touring SUV 2003 - 2004 V6 3.5L RWD Automatic
XS SUV 2001 V6 3.5L RWD/4WD 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.
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: 1999 2000 2001 2002 2003 2004 2005 2006

Fits Models: Lancer, Montero, Montero Sport

Go-Parts Garage · Featured Guide

Oxygen Sensor Guide for 1997-2005 Mitsubishi Montero Sport

Everything you need to know about replacing the oxygen sensors on your Montero Sport to fix that check engine light and improve gas mileage.

Read Full Guide →

⚠️ Related Trouble Codes (OBD-II)

2 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.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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

Racing partner video
Racing partner video
Racing partner video
Racing partner video
×

Search by Vehicle

1
2
3
Added to cart · Part