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

2001 - 2004 Pontiac Aztek Oxygen Sensor - Downstream (Denso) NEW

$ 57 .47

Product Notes

Position: Downstream
O.E. Quality Direct Fit Replacement Sensor
Oxygen Sensor - OE Style
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
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 Gender Female
Mounting Type Threaded
Sensor Type Narrow-band
Thread Diameter 0.708
Wire Quantity 4
Wiring Harness Length 12.20

Vehicle Fitment Guide

This part fits the following vehicles:

Pontiac 1 model (tapclick to expand)(tapclick to hide)
Aztek 2001-2004 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base SUV 2001 - 2004 V6 3.4L AWD/FWD Automatic
GT SUV 2001 V6 3.4L AWD/FWD Automatic
Rally SUV 2004 V6 3.4L AWD/FWD Automatic
V SUV 2002 - 2003 V6 3.4L AWD/FWD 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.
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.

Interchange Parts

Brand Part Number
ACDelco 213-1681
ACDelco 213-2873
ACDelco AFS116
ACDelco AFS123
ACDelco AFS141
ACDelco AFS97
BorgWarner OS825
Bosch 13444
Carquest 75-1909
Delphi ES20002
GMC 12578459
GMC 19178747
GMC 19178922
GMC 19178924
GMC 25318321
GMC 8253122070
NAPA Mileage Plus 2344087
NTK 21528
Standard Ignition SG277
Walker Products 250-24340
Walker Products 350-34076

Fits Years: 2001 2002 2003 2004

Fits Models: Aztek

Go-Parts Garage · Featured Guide

Pontiac Aztek 2001-2005 Oxygen Sensor: A Guide to Replacement

If your Aztek is losing fuel economy or running rough, a bad oxygen sensor could be the culprit.

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

×

Search by Vehicle

1
2
3
Added to cart · Part