GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Default Oxygen Sensor Confusion

    I have a 2002 Chevrolet Suburban with 140K miles. It had 80K when I bought it. It appears to still have the original oxygen sensors. I started looking around for some replacements and found all sorts of conflicting information. Some of the sites even specified a sensor with a connector that is totally different fromt the one I now have.

    Here is the information I have from the sensors currently installed on the Suburban:

    Manufacturer: Denso

    GM P/N 12562943

    All four sensors are the same type.

    The VIN is 3GNEC16Z32G335199 so it is a vehicle manufacturered in Mexico.

    Here is what I think I need to buy: either AC Delco 213-819 or Denso 234-4650.
    I would prefer the Denso since thay are about $10 lower in cost and Denso is the original manufacturer.

    Some sites claim that the 234-4650 sensor is used only on the Canadian built engine. Could I have a Suburban built in Mexico with a Canadian-built engine?

    Any thoughts or comments?


  2. #2


    Since you posted your VIN I took the liberty of calling GM service parts operations. The O2 sensors that your truck left the factory with are GM part # 12562943. Which is the 213-819 that you posted. I would only use AC Delco. For some reason some of the aftermarket O2 sensors do not agree well with GM vehicles. If it has denzo in it now they may have been replaced already. Check amazon for the parts. They are $45 there. Yes, it is possible to have a Mexico build suburban with a Canadian motor. Heck, my wife's torrent was made in Canada with a Chinese motor and a Japanese Trans.
    Last edited by Pikey; 02-28-2013 at 01:05 PM.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors,
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

Similar Threads

  1. oxygen sensor part #'s
    By SoundZman in forum Performance & Fuel
    Replies: 1
    Last: 01-05-2013, 11:42 AM
  2. Bad cats and o2 sensor confusion, please help!
    By elwood in forum General Chevy & GM Tech Questions
    Replies: 1
    Last: 09-06-2012, 10:58 AM
  3. Oxygen sensor DTC P0036 will not go away.
    By deepstuff in forum General Chevy & GM Tech Questions
    Replies: 5
    Last: 06-21-2012, 04:53 PM
  4. Oxygen sensor
    By whitestonian in forum Chevy Truck Talk & GM News
    Replies: 1
    Last: 07-18-2011, 02:51 PM
  5. oxygen sensor
    By loic in forum Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    Replies: 3
    Last: 07-04-2010, 12:46 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts