View Poll Results: Which O2 are better option Bosh 13111 or GM 12569429 (AC 213-1568)
Voters: 58. You may not vote on this poll
AC-delco or Bosch
Thread Starter
Joined: Dec 2005
Posts: 574
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From: charleston wv
AC-delco or Bosch I have two new Ac-Delco (denso) oxygen sensors the Part numbers are: acd# 213-1568 GM#12569429 I belive they are form a 2004 Zo6... I am having issues with my O2s with 24inch ext being lazy and not working right after Pacesetter LT install... I have read alot of you guys say use Bosh 13111's and just bend the fins open a little more to allow more air flow... And i read some people say use Ac-Delco Stock ones... Well the ones i have are not the GM stock replacement they are for the 2004 Zo6... I did a search and the numbers only pulled two post up nothing that pertains to this... So to make a long story short will these work and would they be better than the 13111's....
TECH Enthusiast
Joined: Jan 2008
Posts: 625
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Bosch are junk IMO. I bought 2 new ones, had them installed and they ran like ***. Immediately retuend them as defective and got 2 new ones from the dealer and everything was perfect again. Maybe they were defective, but they certainly sucked. They don't have the same amount of vents as AC-Delco, maybe thats why.
Factory new AC-Delco 02's $65.00 right side $75.00 left side
Factory new AC-Delco 02's $65.00 right side $75.00 left side
Last edited by Navy David SS; Apr 2, 2008 at 07:24 AM. Reason: removed non-sponsor link
Been through all this for the past couple 2-3 years.
I had been running the 13111s. Last weekend I installed a new set of AC Delcos with 24" extensions. I haven't put any miles on it yet, but on my hand held scanner it looks like they are still sluggish. We'll see what happens, if a code to be set, but, unfortunately, I tend to think the problem is not with the sensors, rather it is some mysterious, hard to track problem elsewhere in the car.
Best of luck to you.
PS I did not vote in your poll as I have little to no clue what is causing this, but I doubt it's the sensors.
I had been running the 13111s. Last weekend I installed a new set of AC Delcos with 24" extensions. I haven't put any miles on it yet, but on my hand held scanner it looks like they are still sluggish. We'll see what happens, if a code to be set, but, unfortunately, I tend to think the problem is not with the sensors, rather it is some mysterious, hard to track problem elsewhere in the car.
Best of luck to you.
PS I did not vote in your poll as I have little to no clue what is causing this, but I doubt it's the sensors.
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Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
I'm constantly hearing of Bosch 13111's having problems. I've heard bad things about them from tuners. Take this into account: the AC Delco's come stock on these cars and I've never heard of them failing for tens of thousands of miles. People run them for over 100,000 miles all the time. They're a much better O2, no one should argue that. However, when mine go, I'd go with Denso's. They are cheaper than AC Delco's and they have awesome products.
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