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Zach Vulich

Is there a specific brand of 02 sensor i need to use!!!!????

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I have a 99 GMC Sierra 1500 4X4 and i was wondering if there is a specific brand of o2 sensor that i need to use... because someone was telling me that i have to use OEM for this truck because they dont like NON-OEM o2 sensors. and that they act up and jump all over the place. this guy wanted to charge me $89.99 a plug as well... can someone please help me out with this i would greatly appreciate it...

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ACDelco is the OEM.  I would order from Amazon or GMparts direct or something like that. Never had a problem with my 02 sensors so I can't comment on quality of the aftermarket or the 5.3l not liking Bosch or denso.  For plugs I would run ACdelco. I have seen a bunch of 5.7l engines not like Bosch plugs.  Used to get them returned at the parts store all the time. As far as price to install, $90 a plug is ridiculous. I'd say 2 hours labor max.  Plugs shouldn't be more than $10 each with the mechanics markup. If it's over $300, find another shop. 

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Buy AC delco or Denso o2 sensors. Either from the parts store or source the correct part number for your truck and buy it online like said above.

 

 

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I've got whatever random brand NAPA sold me 4 years ago, and they've worked fine for me.  But, if I had to replace them again, I'd probably get ACDelco ones (same with the rest of the sensors), as the pcm seems to like them better...

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I believe AC/Delco O2 sensors are made by Bosch. 

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