Bosch 15727 O2 Sensor

That is the universal equivalent, which will require some splicing and/or soldering. The direct fit would be a faster install. Bosch 13120

$75 with free shipping on Amazon.com
http://www.amazon.com/Bosch-13120-Oxygen-Sensor-Fitment/dp/B000BZI14G

 

I noticed that as well, but confirmed the part number on a several reliable sites, including our "No Doubt" the 348 guru's website.

 

I have had the 15727 sensors in my 348 for a couple of years with no problems. Splicing was easy.

 

Here's the one I'm using on my 348: No splicing and I think it was only about $80-85.
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Thanks!

 

I would get the factory oem Bosch, it is the same price, $75 with free shipping from Amazon. No splicing, plug and play.