234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD
234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD
234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD
234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD
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234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD

Oxygen Sensor
$21.45
$21.45

234-4668 Upstream Oxygen Sensor, O2 Oxygen Sensor for GMC/Chevy Sierra/Silverado1500/2500HD/3500 HD

Replacement part numbers: 

12573005, 12573167, 12576131, 12580827,
12583290, 12583804, 12584925, 12587785,
?12590790, 12594452, 12596701, 12597878,
?12606569, 12607410, 8125731670, 81257 31670,
12609001, 12611127 15284,2344668, 15284, 21546, SG1857

Fit for:
2003-2005 Chevrolet Silverado 1500 5.3L
2003-2005 Chevrolet Tahoe 5.3L
2003-2005 GMC Sierra 1500 5.3L
2003-2005 GMC Yukon 5.3L
2008 for Buick Enclave Upstream
2005-2009 for Buick LaCrosse Upstream V6 3.8L California Emissions
2007-2008 for Buick Lucerne Upstream V6 3.8L Partial Zero Emissions Vehicle (PZEV)
2009-2011 for Buick Lucerne Upstream V6 3.9L
2005 for Buick Rainier Upstream V8 5.3L
2006-2007 for Buick Rendezvous Upstream V6 3.5L
2009-2013 for Cadillac CTS-V Upstream
2005 for Cadillac Deville Upstream
2003-2005 for Cadillac Escalade Upstream Downstream V8 5.3L
2008-2009 for Chevy Avalanche 1500 Upstream V8 6.0L
2005-2009 for Chevy Cobalt Upstream L4 2.2L
2004 for Chevy Corvette Z06 Upstream
2004 for Chevy Corvette Upstream
2007 for Chevy Silverado 1500 Upstream V8 6.0L New Body Style
2008-2013 for Chevy Silverado 1500 Upstream V8 6.0L
2008-2013 for Chevy Silverado 1500 Upstream V8 4.8L
2008-2010 for Chevy Silverado 2500 HD Upstream V8 6.0L excluding Cab & Chassis
2007 for GMC Sierra 1500 Upstream V8 6.0L New Body Style
2006-2007 for Pontiac G6 Upstream L4 2.4L
2005 for Pontiac Grand Prix Upstream V8 5.3L California Emissions
2005-2006 for Pontiac Grand Prix Upstream V6 3.8L California Emissions
2007-2008 for Pontiac Grand Prix Upstream V6 3.8L Partial Zero Emissions Vehicle (PZEV)
2005-2006 for Pontiac GTO Upstream
2004 for Pontiac GTO Upstream

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When you buy from AFA Motors, you can rest assured that you'll get the right part for your vehicle, or we'll make it right.

Free Return Shipping on Exchanges

We'll pay for the return shipping on exchanges for all orders (even gifts with proof of purchase).

Plus every purchase comes with our 1-year lower price guarantee and expert service from our team of Gearheads.

It's our commitment to you, exclusively from afa-motors.com.

Some restrictions apply. See terms below.


How to Return an Item

Step 1: Start a Return from Your Online Account

Please log in to your account. Locate and click on your order under Order History. Find the item you wish to return or exchange and click on Return Item to submit your request.

Step 2: Receive a Return Authorization Number (RMA#)

One of our customer care specialists will provide you with:

  • An RMA#
  • An email with detailed return shipping instructions

Step 3: Pack & Ship

Pack everything that came with the product using its original packaging.

  • Affix the return shipping label that we provided to the package. If we didn't provide you with a return shipping label, make sure to include the RMA# on the package.
  • Ship the package to the address specified in the email you received from Step 2.

Step 4: Receive Your Refund or Exchange

After we receive your package, we'll process your refund or exchange immediately. You can expect to see the refund, less any applicable restocking fees, credited within 5-7 business days, to the payment method that you used when you originally placed your order. If you selected an exchange, we will ship you replacement item out immediately.

Restocking Fees

All returns are subject to a 20% restocking fee.

We'll waive the restocking fees if we made a mistake or if the product was delivered defective.

We'll also waive the restocking fee if you decide to exchange your product with another purchase.


Frequently Asked Questions

Which products can be returned or exchanged?

Most products can be returned within 30 days of purchase, provided it is returned in original packaging and the items are in new and unused condition. We reserve the right to charge up to the full value of the product for items not received in this condition.

Products that cannot be returned or exchanged:

  • Some products, including, but not limited to, custom patterned and custom, and painted items are not returnable
  • Products that shipped via freight, typically oversized and heavy items.
  • Products that have been installed on your vehicle
  • Products that have been modified (drilled or altered in any way)

Under what conditions may I return an item?

Defective Product

While we pride ourselves in our partnerships with leading vendors, accidents happen. Call us at (800) 874-8888 option #2 once you've discovered the defect, and we'll straighten it out.

Damaged Product

Occasionally packages in transit can become damaged. Call us right away so we can set it straight.

Incorrect Product

If you've received an incorrect product, or if we've guaranteed fitment on your order, and the product does not fit your vehicle, give us a call at (800) 874-8888 and select option #2, and we'll start the return process for you.

Lost Package

If your tracking information says delivered, but you haven't received your package yet, let us know. We will work with the carrier to get to the bottom of it.

Do I have to pay for return shipping?

Returns happen, and we're here to make the experience easy! In most cases, you are responsible for return shipping, but we can offer you a discounted return shipping label. If your item arrived defective or we made a mistake, we will happily take care of the return shipping.

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