I have a doubt which one has if the 17011 or the 17025 or if they are the same sensor and only the code number changes. Which of the two is compatibl

17025 is a LSU 4.9 sensor 0-5v wideband reading

Is it normal for these to come "used" looking? The sensor end was very sooty and had obviously been run in a very rich exhaust?

These say on this page, but all the ones I've seen look used because they are each tested and "burned in", meaning they're required to perform under normal operating temperatures for some significant period of time without flaw or failure of any kind. I used to work in a place that made microwave radio equipment and we had to burn in each one, like 24 at a time, overnight, monitored by computer and tested at it's coldest range too. The data was monitored continuously and if any parameter drifted, then it was torn apart and adjusted and sent back through the burn-in test again, repeat. It seems like there's always one that can't be fixed. Those were recycled. But anyway, an oxygen sensor is required to work in some extreme temperatures. Heat can change things if even the slightest thing is vulnerable or flawed in any way. So, in my opinion, reading comprehension, plus experience, I'd be happy if I got one that looks burned in. If these other comments are correct, and they get shiny new looking sensors, that means YOU are their QC department. All the pictures of every sensor from every vendor looks browned. That said, you said it looks "sooty" and carbon comes off on your hands? That could mean that it had been installed in a rich running car, true. However, it may be that they didn't clean it after burn-in during QC. However, it better not be shiny as a brand new penny, because that means you're their QC department. I have had that happen. They kept asking for more pictures. I felt like I should be on the payroll, but in China, ..? Anyway, It's going to be a judgement call. I'm going to say that these should be tested in sooty conditions because that could happen on a cold day in any car. But it's pretty obvious that nobody cleaned it off. The question is why they didn't. If you were sneaking a bad part in a box, you'd think you'd clean it off, right? If I were you, I'd go with my gut feeling about it. If it's one of the more accessible ones, why not try it? It's not like you'll make it more sooty. One reviewer said "buy 2 so if one is bad, you can simply grab another." It does seem to me that the hardest part is getting everything ready to replace a part and clean up after. So maybe that is the best advice. Buy another 1 or 2 so that if that one is bad you need only try another while you're under there. Maybe this is why OEM parts are so expensive. They'd better work or there's hell to pay. I never thought of it in these terms. But a $20 one? Get 2. These aren't $20 so I suppose people return the extraneous ones, if they're good or bad. Either way, they're looking for a refund. You know? The more I think of this, the more complex it gets. Since you're going to return it anyway, try it but wait until you've got another, just in case. Sorry this was long. It's puzzling. Not as clear cut as the other answers. I don't think they've seen many of these. Even online, they're obviously burned. It's the soot that makes it complex.

Is this tha same as aem 30-2004 wideband?

Sure is. I buy these as replacements for the AEM

How many wires does this sensor have please? I need to attach it to an Air-fuel Gauge having 3 wires

That will not work no matter how many wires it has. Afr gauges are meant to be driven by a wideband controller. The sensor is the input to the wideband controller. The sensor isnt capable of directly controlling the gauge.

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Reviews

J**Y

Seasor

Perfect replacement part works great

16.02.2026

A**R

Edelbrock pro Flo 4 replacement.

This was a direct replacement for my edelbrock Pro Flo 4 efi system. Package arrived on time and was a genuine Bosch item. Install was straight forward, and product is performing as intended.

28.11.2025

T**N

Great wideband sensor replacement.

Works great as wideband sensor replacement in Holley EFI systems.

10.03.2026

A**R

Bosch MAP Sensor

Fits great. Plugged right in. Came in oem Bosch box. Very happy with it for $20.

26.09.2025

K**N

Satisfied customer 😊

This product was wrong part for my vehicle. But I was able to place it with another that fit. Thank you.

3.01.2026

W**E

Works with PLX

Worked perfectly a replacement for my PLX setup.

1.12.2025

R**M

15 Year Old Map Sensor Better Than Brand New Bosch MAP Sensor!

Thought I needed to replace the MAP sensor - I installed this sensor from Bosch and the truck would never start on the first try again. I purchased a fuel pump relay because the new Bosch MAP sensor couldn't be defective, and same issue - put the original old MAP back in and starts first time every time now. Unfortunately I did not have time to install until recently and of course now no warranty - can't believe Bosch puts out crap relays. Anybody want to buy a slightly used MAP sensor that never starts your vehicle the first time??? Awful!!! Buyer Beware! JUNK! Shame on you Bosch!!!

16.02.2026

A**R

Quality and price

Good quality works great great value

17.12.2025

P**I

Arrived exactly as planned & described, highly recommended! Only thing negative in this purchase is Amazon says that they honor the factory warranty, but they don't tell you what that is. After ~20min on the phone with Amazon they still couldn't give me an answer. So they get an F for having their consumers research that basic information for them......... After I called Bosch directly I was told that it is 1yr; just an FYI.

4.01.2015

C**N

Fonctionne super bien et a première vu est de meilleure qualité que celle de AEM!!

10.06.2025

A**R

good

3.10.2022

S**Y

Works great with my KTM Duke 790

1.12.2025

M**O

Conforme alla descrizione, arrivato in imballo originale e in tempi brevissimi.

7.09.2023

ASIN	B009J3EXGQ
Best Sellers Rank	#8,122 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Replacement Oxygen Sensors
Brand Name	Bosch
Customer Reviews	4.4 4.4 out of 5 stars (2,639)
Global Trade Identification Number	00028851170253
Included Components	Oxygen Sensor
Item Dimensions	5.83 x 3.94 x 2.2 inches
Item Type Name	Oxygen Sensor
Item Weight	0.39 Pounds
Manufacturer	Bosch
Material Type	Metal
Measurement Accuracy	HIGH
Measuring Range	10:1 to 20:1 air/fuel ratio
Model	17025
Mounting Type	Flange Mount
Output Type	Physical
Specific Uses For Product	Oxygen Sensor
Style Name	Oxygen Sensor
UPC	028851170253
Upper Temperature Rating	850 Degrees Fahrenheit
Warranty Description	No

BOSCH 17025 Oxygen Sensor

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