Guys,

I know this has been answered a few places in the past, but I see mixed messages all over the place and O2 is not an easily searchable term being only 2 characters. So, I decided to put this note here to seee if we could collect the part numbers folks would need...

What is the direct replacement O2 sensor stock type replacement part numbers if looking to replace without getting into 3 wire, 4 wire...

What I have heard is:

Mazda NOS sensor (pricey) part number ???
NAPA Ford Escort sensor part number ???
Bosch sensor part number ???

Any others that should be listed and pro and cons about each? Can someone give us the part numbers to order and maybe link this to the FAQ?

Mike B

 

I simply walk into a parts store and ask for a "generic Bosch oxygen sensor, single wire". You'll need to change the connector on the end to match your harness.

Pros:
-cheap
-same as Mazda part
-available anywhere

Cons:
-you need to change the connector

 

I replaced mine with a direct Mazda sensor, I think it was $130. As Aaron stated get a Bosch unit and change the connector.....Save about $100.

 

You can normally ask them for "cheapest 1-wire O2 sensor", and most good parts people will know which one.

Despite what other people may tell you, an O2 sensor is an O2 sensor is an O2 sensor.
Some will claims "xxx" type O2 sensor responds better (bullshit) and / or lasts longer (maybe).

The only difference is that some of them are now 0-5V versions.
You need the 0-1V version.


-Ted

 

I replaced my OEM one recently with the autozone special, but I think my fuel economy might be suffering a bit because of it.

I might try the Bosch one next if I can't get more than 260miles/tank.

 

So next time someone buys one of the Bosch units, how about reading the label on the side of the box and tell us what the Bosch part number is.

Theories are great, but facts are what make the rotary turn...

 

I picked up a new O2 for mine last Friday, I took a look at the original one and it was made by NGK, so that's what I bought NGK/NTK cost me $39 for the 'universal one (no connector). #21000

Seem to be working just fine!

 

Bosch universal 11027 $17.99
Beck-Arnley 156-8100 $62.16

 

Bosch universal 11027 $17.99
Beck-Arnley 156-8100 $62.16

 

Now we're getting somewhere,

thanks Turbonut...

 

Here's one even better- Bosch p/n 12054, direct plug & play for our cars, no splicing needed, connector already on there. Unit has worked good for me for about a year now, checked it with a meter at the ECU 'bout a month ago, doing great at .4 to .5 volts at cruise...

 

i can get you the origina part number for the o2 sensor just pm me

 

NGK #24036 (comes with connector) from Sparkplugs.com, $35.

Jim D

 

NGK #24000 (no connector) from Sparkplugs.com, $24.

The reason I used this one is because the stock length of connector will no reach the bung on the header's so the lead needs to be lengthened anyway...

 

yeah, Autozone carries the one mentioned above without a connector $17 and one with a connector to plug right in $30. I'll look for the box and give the part # to this.

 

I know I'm resurrecting an old thread, but after reading this I took Wayne's advice and picked up Bosch #12054 and it is not a direct fit! Perhaps it's for a different model... (I thought they were all the same, though)? I have an S5 N/A.

This should be an easy question -- what is involved in "splicing" the old connector onto the new one? I don't have much electrical experience. Are there certain wires in the connector that you have to match up, or do you just cut the old one a few inches back and mate the wires or something?

 

These sensors are as single wire. All you need to do is change the connector from your old Mazda O2 sensor to the new replacement sensor.