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Old 03-23-2013, 07:04 PM
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Quick Question about my 06 Envoy

Need to replace my front, position 1, 02 sensor in my I6 Envoy. I actually find two different AC Delco part numbers that claim to be for the same position. Can anyone tell me the difference between the two numbers? The numbers are :

213-3539 (#12592591)
Or
213-4348 (#19187278)

They are different prices but both claim to be bank 1 pos 1. I need some help quickly as my wife needs this thing for a long trip on Wednesday.

Thanx in advance!

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Old 03-23-2013, 07:36 PM
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envoy site

Have you tried asking at Trailvoy.com? It's a good site for Trailblazer and Envoy info. Lots of do-it-yourselfers there too.
terry
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Old 03-23-2013, 07:47 PM
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no, i didnt. i was trying not to register there just to ask one question. i will if i must, tho. thank you for the response.
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Old 03-23-2013, 08:00 PM
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Added link to Hey Greg,

12592591 (and / or 213-3539) crosses to NGK # 21561, which my NAPA Prolink catalog says fits front of convertor.

Your other numbers do not cross, but my catalog calls for #21023 for rear of convertor.

But wait, it gets even more confusing.
I also went to AC-Delco's website:


Quote:
SENSOR,HTD OXY(POSN 1)
Part Number: 213-3539
Product Notes:

Heated Oxygen Sensor (Position 1)
In exh manifold/crossover


Per Vehicle: 1; Years: 2006-2009
Quote:
SENSOR,HTD OXY(POSN 2)
Part Number: 213-3139
Product Notes:

Heated Oxygen Sensor (Position 2)


Per Vehicle: 1; Years: 2006-2006
EXCEPT that the picture for the above part is a connector!




OK, stay with me here...
213-3139 crosses to the NGK 21023 (the same # as per NGK catalog application)

Finally...
I looked up Delco P/N 213-4348
Quote:
SENSOR ASM,HTD OXY (POSN 1)
Part Number: 213-4348
and the buyers guide info does say that it also fits your Envoy!

Something's not right ... has someone at Delco confused the O2 sensor with the connector???

Personally, I'd be more apt to follow either Delco's application guide (regardless of the picture) or to simply install the NGK ones.

Last edited by 66GMC; 03-23-2013 at 08:03 PM. Reason: Added link to AC-Delco Catalog
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Old 03-23-2013, 08:16 PM
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omg, no wonder i couldnt find what i need. i went to rockauto.com and they have them all listed. and they have both ac delco numbers listed also. i think i'll just order the denso brand for 35 bux and be done with it. thank you for the leg work. much appreciated.

edit; i also found this on delco website;

SENSOR ASM,HTD OXY (POSN 1) Part Number: 213-4348 Product Notes: Heated Oxygen Sensor (Position 1) In exh manifold/crossover ; Front ; 4 Wire ; 4WD ; SLE, SLT Per Vehicle: 1; Years: 2006-2006

and the pic shows a sensor.


also this;

SENSOR ASM,HTD OXY (POSN 1) Part Number: 213-4348

Last edited by Greg T; 03-23-2013 at 08:36 PM.
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Old 03-23-2013, 08:36 PM
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omg, no wonder i couldnt find what i need. i went to rockauto.com and they have them all listed. and they have both ac delco numbers listed also. i think i'll just order the denso brand for 35 bux and be done with it. thank you for the leg work. much appreciated.
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Old 03-24-2013, 08:22 AM
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Quote:
Originally Posted by Greg T View Post
omg, no wonder i couldnt find what i need. i went to rockauto.com and they have them all listed. and they have both ac delco numbers listed also. i think i'll just order the denso brand for 35 bux and be done with it. thank you for the leg work. much appreciated.
If you value your time you will call the closest dealer, have your vin # handy and get the OEM sensor. If you dont you could be chasing your tail with a sub par sensor.
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