Did I receive the right O2 Sensor?

[4Runner4Leon]

I ordered an OEM Toyota front O2 sensor, PN 89465-39835, which I believe is correct for my truck.

When I received the item, the box was open, and the item inside it had 89465-35360 stamped on it, as well as Denso 7094. I can't find any spec for these numbers. Is it interchangeable with what I ordered, or should I return it and ask for one with the right PN on it?

 

[mtbtim]

You could have used densoautoparts.com

Find My Part

Your downstream 02 sensor is a #234-4154

Your upstream 02 sensor is a #234-4162

I just replaced both of min on my 98 3rd Gen in hopes it would improve my gas mileage. Preliminary results are it did improve my gas mileage a little.

I ordered the 02 sensors through Amazon.

https://www.amazon.com/gp/product/B000C5SG8G/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B000C5UFK8/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

 

[4Runner4Leon]

You could have used densoautoparts.com

Find My Part

Your downstream 02 sensor is a #234-4154

Your upstream 02 sensor is a #234-4162

I just replaced both of min on my 98 3rd Gen in hopes it would improve my gas mileage. Preliminary results are it did improve my gas mileage a little.

I ordered the 02 sensors through Amazon.

https://www.amazon.com/gp/product/B000C5SG8G/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B000C5UFK8/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

Thanks Tim. I did use the Denso website. The sensor I ordered is the correct Toyota part number for my vehicle.

What I am asking is did I receive the correct item, since it has a different number stamped on it. I paid $35 for this O2 sensor, that's why I chose it instead of the Denso from Amazon (I did get the rear unit from there).

 

[mtbtim]

Thanks Tim. I did use the Denso website. The sensor I ordered is the correct Toyota part number for my vehicle.

What I am asking is did I receive the correct item, since it has a different number stamped on it. I paid $35 for this O2 sensor, that's why I chose it instead of the Denso from Amazon (I did get the rear unit from there).

Gotcha. I didn't even think to look for a number on the sensor. Mine were in unopened boxes and the sensors were wrapped in plastic bags. They matched the ones I pulled off so I assumed they were the correct sensors.

 

[TheDurk]

Ignore the numbers stamped on the sensor. They never match. They didn't match on the factory ones I took off mine. Basically, if it fits in the bung, has enough wire and plugs up, it will work. There are three types of sensors: flange 02, flange A/F, and screw-in O2. Within each type, they vary only by wire length. Proof of that, is that Toyota makes a universal in each type that has just a wire that can replace all of the sensors of each type by cutting the wire and splicing in the old plug.The plugs of the o2's are different than the A/Fs, so you can't plug in the wrong type. Too little wire is a problem, but a little extra can be fastened out of the way. So as long as you have the right type with enough wire, you are good.

 

[4Runner4Leon]

Gotcha. I didn't even think to look for a number on the sensor.

Yup, that's my OCD kicking in. If the box had been unopened, I wouldn't have bothered, but because it was an open box special (hence $35 instead of normal $100), I wanted to make sure someone did not pull a switch-aroo on the item.

Ignore the numbers stamped on the sensor. They never match. They didn't match on the factory ones I took off mine. Basically, if it fits in the bung, has enough wire and plugs up, it will work. There are three types of sensors: flange 02, flange A/F, and screw-in O2. Within each type, they vary only by wire length. Proof of that, is that Toyota makes a universal in each type that has just a wire that can replace all of the sensors of each type by cutting the wire and splicing in the old plug.The plugs of the o2's are different than the A/Fs, so you can't plug in the wrong type. Too little wire is a problem, but a little extra can be fastened out of the way. So as long as you have the right type with enough wire, you are good.

Thanks, this is exactly what I was hoping for. Thanks for confirming!

 

[4Runner4Leon]

I replaced both sensors today. Interestingly, the OEM upstream sensor had the exact same part number (89465-35360) stamped on it as my replacement unit, so that resolved any residual concerns. Here they are side by side:



Oddly, the replacement Denso unit had a longer harness than the OEM one, even though it's supposed to be the right item. I guess longer is better than shorter, though the loop can conceivably reach the driveshaft flange if it decided to get gnarly. I'll tie it down with a zip tie just to be sure:

 

[TheDurk]

I replaced both sensors today. Interestingly, the OEM upstream sensor had the exact same part number (89465-35360) stamped on it as my replacement unit, so that resolved any residual concerns. Here they are side by side:

Oddly, the replacement Denso unit had a longer harness than the OEM one, even though it's supposed to be the right item. I guess longer is better than shorter, though the loop can conceivably reach the driveshaft flange if it decided to get gnarly. I'll tie it down with a zip tie just to be sure:

Just to reinforce my point about the numbers on the sensors themselves...when I plug that number into the reverse search at Camelback Toyota I get this:

Part number 89465-35360 was not found.

.

I'm pretty sure that is a batch part number for just the sensor end piece that goes on before the wires and plug are added. The sensor piece then becomes one of a number of final P/Ns and is given a box with that number.

As to the length, it is quite possible that Denso has consolidated p/n's with similar lengths after 20 years just to simplify things.