AEM Wideband UEGO Air Fuel Ratio Gauge (30-4110)

AEM Electronics
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AEM Wideband Air Fuel Ratio UEGO Gauge 30-4110

When asked about checking their air, most drivers look at their tires.

Not you.

You’ve spent countless hours in the garage, working on souping up your engine to operate at higher, more powerful levels. You've been doing this for a while, so you know that air is an essential part of what’s happening in your engine.

Introducing AEM's Wideband UEGO.

The AEM wideband sensor is more precise and detailed than other fuel ratio gauge kits on the market. This three-digit digital readout can be seen in its center, with a digital LED display “needle” that changes color as ratios change from rich to lean.

Trust AEM's reputation and world-famous wideband for accurate monitoring. AEM's legendary Digital Wideband is unparalleled in the market. The UEGO Air-Fuel Ratio Controller/Gauge has one of the best tools you can use to get your engine running as efficiently and safely as possible while preventing serious damage, all with just a glance!

AEM 30-4110 Wideband Features

  • The gauge controls its data by a digital LED display and LED needle that will change colors as the ratios change from rich to lean.
  • Interchangeable black and silver bezels / black and white face plates included
  • Provides high accuracy data that is essential when tuning your engine.

AEM Wideband Benefits

  • This gauge is easier to read and more accurate than most fuel sensor controller gauges.
  • No free air sensor calibration required - ever
  • Allows you to accurately monitor your Air/Fuel Ratio with simplistic yet durable wideband gauge designs.


  • Universal range of compatible cars

What's in the box?

  • AEM UEGO Wideband Gauge
  • Bosch 4.9 LSU oxygen sensor
  • Interchangeable black and silver bezels
  • Interchangeable black and white faceplates
  • All necessary wiring for install


  • 12 Month Limited Manufacturers Warranty

Customer Reviews

Based on 169 reviews
Aem wideband

A must if your going to get your car tuned… shipping was fast and it looks great!

Ted Burke
Best of the BEST

Solid gauge works well it is fairly easy to install
my whole install with welding included was around 2 hrs
its a 52mm gauge so i used my 3d printer to make a housing for it

Installed in a 2015 lancer ES

allan ocariza
AEM UEGO Wideband Gauge

This gauge is awesome I already installed in my wrx and looks great and easy to install with instruction highly recommended Fast shipping thank you 😊 u

Kevin Earl
Nice kit

Haven’t installed it yet but it looks nice. Great service as always from MAP

Esteban Perez
Aem Wideband

Best prices out there and delivered quickly. Aem wideband works like a charm