AEM UEGO Wideband Air/Fuel Gauge Kit w/ Bosch LSU 4.9 Sensor 30-4110
AEM UEGO Wideband Air/Fuel Gauge Kit w/ Bosch LSU 4.9 Sensor - HA Motorsports

AEM UEGO Wideband Air/Fuel Gauge Kit w/ Bosch LSU 4.9 Sensor 30-4110

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AEM wideband AFR gauge kit featuring the new Bosch LSU4.9 sensor. The AEM UEGO wideband unites accuracy, speed and control with an easy to read, digital LED display and sweeping LED “needle” that changes colors as AFR changes from rich to lean. A 52mm (2-1/16") gauge housing ensures that it will fit in most gauge pods and can be remotely mounted virtually anywhere. All AEM digital gauges feature a 0-5v analog output for use with data loggers and almost any engine management system. Each gauge comes with black and silver bezels and black and white faceplates for multiple color combinations and a custom look (a black Lambda faceplate and black and white Air/Fuel Ratio faceplates).

The Wideband O2 air/fuel ratio UEGO gauge is a must if you want to maximize your engine's power and safety. When tuning an engine, accurate air/fuel ratio data is critical because running with too rich of an AFR can cause a loss of power, and running a lean AFR can result in serious engine damage. AEM's digital Wideband AFR UEGO gauge can quickly alert you to even a .1 change in air/fuel ratio and provide enough time to shut down an engine before damage occurs.


  • Interchangeable black and white faceplates included for customizing gauge appearance
  • Bosch 4.9 LSU wideband sensor and weld-in bung included
  • No free air sensor calibration required - ever
  • Interchangeable black and silver bezels included
  • Interchangeable black and white faceplates included
  • 52mm (2-1/16”) gauge housing
Air/Fuel ratio value range by fuel type:

  • Center LED Readout Displays Gasoline Values from 10 to 18 :1 AFR
  • Outer LED Ring Displays Gasoline values from 11 to 16.75 :1 AFR
  • 0-5V Output Gasoline values from 10 to 20 :1 AFR
  • 0-5V Output E85 values from 6.6 to 13.2 :1 AFR
  • 0-5V Output Ethanol values from 6.14 to 12.3 :1 AFR
  • 0-5V Output Methanol values from 4.4 to 8.8 :1 AFR
  • 0-5V Output Lambda values from .68 to 1.36
  • Center LED Readout Displays Lambda values from .68 to 1.23
  • Outer LED Ring Displays Lambda values from .75 to 1.14


  • 1 x UEGO Gauge Assembly
  • 1 x UEGO Sensor (Bosch LSU 4.9)
  • 1 x O2 Sensor Bung
  • 4 x Butt Connectors
  • 1 x Installation Instruction
  • 1 x 4 Lead Harness
  • 1 x UEGO Sensor Harness
  • 1 x Silver Bezel
  • 1 x Black Lambda Faceplate
  • 1 x White AFR Faceplate
Installation Instructions


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