---
product_id: 756725044
title: "BOSCH 17025 Oxygen Sensor"
brand: "bosch"
price: "S$229"
currency: SGD
in_stock: false
reviews_count: 5
category: "Bosch"
url: https://www.desertcart.sg/products/756725044-bosch-17025-oxygen-sensor
store_origin: SG
region: Singapore
---

# Extended sensor lifespan True Direct-fit OE connector Advanced broadband sensing BOSCH 17025 Oxygen Sensor

**Brand:** bosch
**Price:** S$229
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Tune smarter, drive cleaner — Bosch precision for the performance elite!

## Quick Answers

- **What is this?** BOSCH 17025 Oxygen Sensor by bosch
- **How much does it cost?** S$229 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/756725044-bosch-17025-oxygen-sensor)

## Best For

- bosch enthusiasts

## Why This Product

- Trusted bosch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quality Guaranteed:** 100% functional quality tested to meet Bosch’s premium standards for consistent performance.
- • **Wide Compatibility:** Engineered for aftermarket high-performance wide-band kits, perfect for serious automotive enthusiasts.
- • **Effortless Installation:** Pre-coated threads and OE direct-fit harness ensure a hassle-free, anti-seize setup right out of the box.
- • **Durability You Can Trust:** Robust sensor design with baked protective tube extends sensor life under demanding conditions.
- • **Precision Air/Fuel Measurement:** Sophisticated broadband sensor delivers real-time, proportional oxygen data for optimal engine tuning.

## Overview

The Bosch 17025 Oxygen Sensor is a premium broadband air/fuel sensor designed for high-performance aftermarket kits. Featuring advanced sensing technology, direct-fit OE connectors with anti-seize coating, and a durable design tested for quality, it ensures precise engine tuning and extended sensor life for professional-grade automotive performance.

## Description

Bosch 17025 Premium Widesband A/F Oxygen (O2) Sensor is designed for use with aftermarket high performance wide-band kits. The broadband/air fuel sensor works the same as normal O2 sensors, but instead instead of switching between rich (too much fuel, lack oxygen) and lean (too much oxygen and lack of fuel). Our broadband sensor uses a more sophisticated sensing element that provides a signal proportionate to the amount of oxygen in the exhaust. Designed and manufactured with a robust sensor design to extend the life of the sensor. Pre-coated threads with "True Direct-fit" OE connectors and harness, plus anti-seizing compound make installation easy right out of the box. 100% functional quality testing and protective tube baked on

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

## Features

- Bosch Premium Widespread A/F Oxygen (O2) Sensor is designed for use with aftermarket high performance wide band kits
- Advanced broadband sensing element for accurate air/fuel measurement General oxygen sensors simply transmit rich or lean signals
- Robust sensor design extends sensor life
- Baked protective tube with 100% functional quality tested
- True Direct-fit' OE Connector and Harness Threads are pre-coated with anti-seizing compound

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009J3EXGQ |
| Amazon Bestseller | #640,033 in Automotive ( See Top 100 in Automotive ) #1,488 in Automotive Replacement Oxygen Sensors |
| Batteries Included | No |
| Batteries Required? | No |
| Color | Narrow Band |
| Customer Reviews | 4.3 4.3 out of 5 stars (603) |
| Date First Available | August 13, 2013 |
| Included Components | Replacement - Underhood, Engine Management, Automotive-ambient air temperature sensor |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 14.8 x 10 x 5.6 cm |
| Item Weight | 177 g |
| Manufacturer | Bosch |
| Material | Metal |
| Measurement Accuracy | High |
| Mounting Type | Connectors |
| Part number | 17025 |
| Product Dimensions | 14.81 x 10.01 x 5.59 cm; 176.9 g |
| Size | 17025 |
| Specific Uses For Product | Oxygen Sensor |
| Style | Oxygen Sensor |

## Product Details

- **Brand:** Bosch
- **Item Weight:** 177 g
- **Item dimensions L x W x H:** 14.8 x 10 x 5.6 cm
- **Material:** Metal
- **Style:** Oxygen Sensor

## Images

![BOSCH 17025 Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/31CEu935v2L.jpg)
![BOSCH 17025 Oxygen Sensor - Image 2](https://m.media-amazon.com/images/I/41-K1AfzlFL.jpg)
![BOSCH 17025 Oxygen Sensor - Image 3](https://m.media-amazon.com/images/I/41NZByiqv6L.jpg)
![BOSCH 17025 Oxygen Sensor - Image 4](https://m.media-amazon.com/images/I/41XE1HwSbJL.jpg)
![BOSCH 17025 Oxygen Sensor - Image 5](https://m.media-amazon.com/images/I/41rPjTj0aiL.jpg)

## Questions & Answers

**Q: 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**
A: 17025 is a LSU 4.9 sensor 0-5v wideband reading

**Q: 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?**
A: 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.

**Q: Is this tha same as  aem 30-2004 wideband?**
A: Sure is.  I buy these as replacements for the AEM

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***N on June 10, 2025*

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

### ⭐⭐⭐⭐⭐ Review
*by A***R on November 28, 2025*

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.

### ⭐⭐ Review
*by Z***R on May 24, 2021*

Product is genuine but the shipment is bad. The box all messed up!

## Frequently Bought Together

- BOSCH 17025 Oxygen Sensor
- AEM 30-4110NS Digital Wideband UEGO Gauge without Sensor , Black , 6.025 inches

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-26*