---
product_id: 376448933
title: "LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025"
brand: "gledewen"
price: "HK$797"
currency: HKD
in_stock: true
reviews_count: 2
category: "Gledewen"
url: https://www.desertcart.hk/products/376448933-lsu-4-9-lambda-wideband-o2-oxygen-sensor-for-aem
store_origin: HK
region: Hong Kong
---

# 12V max supply voltage OEM perfect fit dimensions 800°C upper temp rating LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025

**Brand:** gledewen
**Price:** HK$797
**Availability:** ✅ In Stock

## Summary

> 🔥 Unlock your engine’s true potential with precision oxygen sensing! ⚙️

## Quick Answers

- **What is this?** LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 by gledewen
- **How much does it cost?** HK$797 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/376448933-lsu-4-9-lambda-wideband-o2-oxygen-sensor-for-aem)

## Best For

- gledewen enthusiasts

## Why This Product

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

## Key Features

- • **Risk-Free Upgrade:** Backed by a 12-month warranty with hassle-free replacement or refund—confidence in every install.
- • **Durability Under Fire:** Constructed from alloy steel and rated for extreme exhaust temps up to 800°C—built to last.
- • **Wide Compatibility Range:** Fits AEM 30-4110, 30-0300, 30-0310 X-Series controllers—covering all your wideband needs.
- • **Seamless OEM Compatibility:** Engineered to strict OEM standards for direct replacement—no guesswork, no fitment issues.
- • **Precision Oxygen Monitoring:** Sophisticated sensing element ensures real-time, proportional oxygen measurement for peak engine efficiency.

## Overview

The Gledewen LSU 4.9 Lambda WideBand O2 Sensor delivers precise, real-time oxygen measurement with a sophisticated sensing element, ensuring optimal engine performance and fuel efficiency. Designed to OEM specs for a perfect fit with AEM 30-4110, 30-0300, and 30-0310 X-Series controllers, it withstands extreme exhaust temperatures up to 800°C. Made from durable alloy steel and backed by a 12-month warranty, this sensor is the ultimate upgrade for professional-grade engine management.

## Description

Fitments:Most 4.9 LSU Wideband Controller GaugeAEM 30-4110 Wideband UEGO GaugeAEM 30-0300 Wideband UEGO AFR GaugeAEM 30-0310 Wideband UEGO AFR ControllerReplaces OE#:17025, 0258017025, 304110, 300300, 300310O2 Sensor Installation Steps①Disconnect the batteryPrevent accidental short circuits.②Locate the old sensorUsually found on the exhaust manifold or pipe.③Unplug the sensor connectorCarefully disconnect the wiring harness.④Remove the old sensorUse an O2 sensor socket or wrench to unscrew.⑤Clean the sensor portRemove any rust or debris from the threaded hole.⑥Apply anti-seize compound (if not pre-applied)On the threads only, avoid the sensor tip.⑦Install the new sensorThread it in by hand, then tighten with a wrench (do not overtighten).⑧Reconnect the sensor wiringPlug the harness back in securely.⑨Reconnect the batteryRestore power to the system.⑩Start the engine and check for codesQuality Guarantee:12-Month WarrantyAt Gledewen, we take pride in the quality of our products and in your satisfaction. If you have any problems, do not hesitate to contact us.

Review: Good - Good
Review: Good Quality - But delivery issue

## Features

- 【HIGH PERFORMANCE】Our wideband sensor use a more sophisticated sensing element that provides a signal that is proportional to the amount of oxygen in the exhaust, helps ensure your engine is constantly monitored and operating efficiently, while maximizing performance
- 【Perfect Fit】 Made in strict accordance with OEM standards and tested in multiple layers before leaving the factory, it matches the original sensor and can be directly replaced.
- 【Fitment】LSU4.9 Wideband Controllers with part numbers 30-4110 Wideband UEGO Gauge, 30-0300 X-Series Wideband UEGO AFR Gauge, 30-0310 X-Series Inline Wideband UEGO AFR Controller | Most 4.9 LSU Wideband Controller Gauge
- 【REPLACE OE NUMBER】17025, 0258017025, 304110, 300300, 300310. A lot of buyers brought the wrong A/F gauge sensor because they don't pay attention to the plug and the length of the sensor. Please check these 2 features before purchase
- 【12-MONTH WARRANTY】If the wide band lambda sensor fails, stops working or any other problems, you can contact us through desertcart message to apply the service of carefree REPLACEMENT or REFUND

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0863P6YLQ |
| Best Sellers Rank | #58,968 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #923 in Power Transmission Products |
| Brand | Gledewen |
| Brand Name | Gledewen |
| Country of Origin | USA |
| Customer Reviews | 4.1 out of 5 stars 970 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Item Dimensions | 15.5 x 11.9 x 4.3 Centimeters |
| Item dimensions L x W x H | 15.5 x 11.9 x 4.3 Centimeters |
| Manufacturer | Gledewen |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Supply Voltage | 12 Volts (DC) |
| Measuring Range | 0% - 100% oxygen |
| Model Number | LSU 4.9 |
| Mounting Type | Flange Mount |
| Output Type | electrical signal |
| Specific Uses For Product | Oxygen Sensor |
| Style | Digital,Submersible |
| Style Name | Digital,Submersible |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 800 Degrees Celsius |

## Product Details

- **Brand:** Gledewen
- **Item dimensions L x W x H:** 15.5 x 11.9 x 4.3 Centimeters
- **Material:** Alloy Steel
- **Maximum Supply Voltage:** 12 Volts (DC)
- **Style:** Digital,Submersible

## Images

![LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 - Image 1](https://m.media-amazon.com/images/I/61tZJtMbNTL.jpg)
![LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 - Image 2](https://m.media-amazon.com/images/I/81BIN9Fv5eL.jpg)
![LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 - Image 3](https://m.media-amazon.com/images/I/8117R4CIQPL.jpg)
![LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 - Image 4](https://m.media-amazon.com/images/I/81od1q2ylUL.jpg)
![LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025 - Image 5](https://m.media-amazon.com/images/I/81Cj6-ItcqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by A***R on 4 April 2025*

Good

### ⭐⭐⭐⭐ Good Quality
*by T***N on 1 November 2023*

But delivery issue

## Frequently Bought Together

- LSU 4.9 Lambda WideBand O2 Oxygen Sensor | for AEM 30-4110 30-0300 30-0310 - X Series AFR Inline Controller - UEGO A/F Ratio Wideband 02 Gauge | Replace# 17025, 0258017025
- AEM 30-4110NS Digital Wideband UEGO Gauge without Sensor , Black , 6.025 inches

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-19*