02 sensors

[bubbatrucklover]

I have a seemingly stupid question. I was given 3 brand new (still in the bags) 02 sensors for my truck. Based on various auto parts stores some have different part #s and some say they are the same (for the up and down stream).

Are they? and I only need to order one(for a complete set) or will I see the difference when I pull them (say on the element or harness) ?

Thanks

 

[Bigredmariner]

The downstream sensors will be a heated sensor, so they aren't interchangeable with the upstream sensors. I don't remember if you can visually tell a difference or not...


Posted from my iPad via Tapatalk HD.

 

[Kennyray]

The heated sensor would have 3 or 4 wires, non-heated just 2.

 

[bubbatrucklover]

The downstream sensors will be a heated sensor, so they aren't interchangeable with the upstream sensors. I don't remember if you can visually tell a difference or not...


Posted from my iPad via Tapatalk HD.

The heated sensor would have 3 or 4 wires, non-heated just 2.

Gotchya. Thanks.

So that should mean the plugs SHOULD be different and not fit right? I guess I'll get back under the truck and see if I tell a diff and then order 2 of the appropriate.

 

[Zembonez]

Should be able to see a difference in the plug/connectors.

 

[Kennyray]

Looks like both your upstream and downstream sensors are heated. The upstream will have a flat connector and the downstream has a square one.

 

[bubbatrucklover]

Should be able to see a difference in the plug/connectors.

Looks like both your upstream and downstream sensors are heated. The upstream will have a flat connector and the downstream has a square one.

Yeah I crawled under there today. It looks like I have 2 new upstream and one new downstream. I just ordered one downstream (which I know I need at least 1) and hopefully that'll complete the set. If not, already having the 2 is better then none.