for my 1997 V6 runner...
I'm looking to replace both the one in front and the one in the rear of the cat.
getting the p0420 code again...
went to amazon, and the prices are great, but cannot tell which one is behind and in front of the cat?

 

Look here: http://www.urdusa.com/More-Products-...89o0s114354g92

 

89465 Oxygen Sensor
89465-39835 Front
89465-39855 Rear

 

URD is good. I prefer to go to the source.
http://www.densoaftermarket.com/catalog/index.php

On the other board, there was one application that URD and Denso both had wrong. The wire was too short. (Sorry, it wasn't my truck and I don't remember which one.) Putting the Toyota number into the Denso cross-reference got it right. (Second tab on link above). Consider doing it both ways to be safe.

 

Proof of the accuracy of my previous statement.
So yeah...let's see if we can make things any more confusing for the guy...

BTW, how the hell could Denso be right and wrong at the same time? Sorry, that makes no sense whatsoever.

Anyways, "part number" generally means the Toyota part number. You can ALWAYS count on it being correct. They built the thing, they know what parts go on it.

Source? I AM THE TOYOTA PART NUMBER SOURCE. RESPECT MY AUTHORITY!!!

 

ah yes, that cleared it up for me
ok, went to amazon and ordered both of them up...thanks much for taking the time

 

Hah.

 

Relax. My statement is accurate. The application drill-down and the cross-reference of the Toyota part number provided different Denso part numbers from the same Denso site. Is that really hard to grasp? Yes, it makes no sense, because one of them was WRONG (the application drill-down.) Since URD presumably copied Denso's application listings, they had the wrong Denso number, too. I said they had it wrong for ONE application, not necessarily this one. Other people will read this besides the OP.

Toyota part numbers are great if you are buying from a dealer, but if you want the same part from an original equipment supplier at a much lower price, you need the manufacturer's part number--in this case, Denso. If a non-dealer seller, say on Amazon, posts a Toyota part number, then you are relying on a cross-reference done by that seller. I prefer to do it myself.

Sorry, but I've never been good about respecting authority.

 

Quick question: Is their a difference in part #'s between auto trans and manual trans???

 

Usually....wire length tends to change.

 

Sensors should all the be the same. The different part numbers are for different wire lengths and plugs. My preference is to use Denso universals and cut and splice. They work just fine.