Denso O2 Sensor from autozone OK?

Hi- I searched the forums but can't find this exact answer.

I got a CEL, got it read, I need the upstream O2 sensor for my 2004 2.7L 4x4 (manual trans). Advance Auto wants $179 for the Bosch, but I read on here that Bosch is crap. I also read that Denso is what toyota uses for OEM? Is that correct?

AutoZone has the Denso one I need for $129. Does that sound right to you guys?

Is it necessary to replace both upstream and downstream together?

 

One of those isn't a exact replcement. I bought one from AZ and had to exchange it because it didn't fit exact. My receipts are not nearby so I don't remember which it was. Just compare real close when you get it.

 

toyota uses denso

 

Check out Rock Auto. They have one for $99 and another one for $60.

It is not necessary to replace both at the same time.

 

I just bought the upstream from Rock, which is an a/f sensor also, and went with the Denso. Bosch is trash.. Rock has great prices and fast shipping. I think the sensor was 90 something.

 

Danial, Rock Auto suprised me with the fast shipping and reasonable costs. I have no worries buying from them.

 

Right on, thanks guys. Just ordered the Denso from Rock Auto. $99, much cheaper than the Bosch for $179 at Advanced Auto