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AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
AEM 30-4110 Digital Wideband UEGO Gauge Bosch LSU 4.9
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AEM Digital Wideband UEGO Gauge

AEM
AEM30-4110
840879023157
Gauges
20+ Units In Stock - Ships Next Business Day
$ 233.95 $ 207.95
$ 207.95

Proven Digital Wideband AFR Accuracy in the Classic AEM 52mm Housing

The AEM 30-4110 Digital Wideband UEGO Gauge delivers precise air-fuel ratio monitoring with 0.1 AFR accuracy using the Bosch LSU 4.9 wideband UEGO sensor. Unlike the X-Series gauges, the AEM 30-4110 uses a traditional digital display face rather than the newer X-Digital format, making it a preferred option for builders who want a clean, functional readout without secondary display modes. The 30-4110 operates on 8-18V, reads from 10:1 to 20:1 AFR, and outputs a 0-5V analog signal for datalogger integration. A 52mm housing fits any standard gauge panel or A-pillar pod.

Key Features

  • 0.1 AFR accuracy with Bosch LSU 4.9 wideband UEGO sensor for precise air-fuel ratio monitoring
  • Digital display readout in a 52mm housing for standard gauge locations
  • Reads 10:1 to 20:1 AFR range covering naturally aspirated and forced induction applications
  • 8-18V operating voltage works with standard 12V vehicle electrical systems
  • 0-5V analog output for datalogger, ECU, or piggyback controller integration
  • Compatible with gasoline, E85, methanol, diesel, and other fuel blends
  • Includes 18mm weld-in O2 bung for sensor installation
  • AEM 30-4110 is a universal gauge fitment for any vehicle with an available exhaust bung location

Specifications

Detail Value
Part Number 30-4110
UPC N/A
Gauge Diameter 52mm
AFR Range 10:1 to 20:1
AFR Accuracy 0.1 AFR
Sensor Bosch LSU 4.9 wideband UEGO
Operating Voltage 8-18V
Analog Output 0-5V for datalogger/ECU
Display Type Digital (non-X-Series)
Application Universal (all fuel types)

What's Included

  • 1 AEM 30-4110 digital wideband UEGO gauge
  • 1 Bosch LSU 4.9 wideband oxygen sensor
  • Sensor harness and gauge wiring harness
  • 18mm weld-in O2 bung
  • Instructions

About AEM Performance Electronics

AEM Performance Electronics has been developing aftermarket performance electronics for over 30 years from Hawthorne, California. AEM produces wideband controllers, standalone ECUs, boost gauges, and data acquisition systems trusted by professional race teams and performance enthusiasts worldwide. The 30-4110 represents AEM's original digital wideband gauge platform, valued for its reliability and straightforward AFR display.

Frequently Asked Questions

What is the difference between AEM 30-4110 and AEM 30-0300?

The AEM 30-4110 is AEM's classic digital wideband gauge with a traditional digital display, while the 30-0300 uses AEM's newer X-Digital technology with a simultaneous AFR/lambda dual-display face. Both use the Bosch LSU 4.9 sensor and read 10:1-20:1 AFR. The 30-4110 is the original platform; the 30-0300 is the current generation X-Series design.

What sensor does the AEM 30-4110 use?

The AEM 30-4110 uses the Bosch LSU 4.9 wideband UEGO sensor, which is included in the kit. The LSU 4.9 is the industry standard wideband sensor used in performance tuning and motorsport applications.

What AFR accuracy does the 30-4110 provide?

The AEM 30-4110 provides 0.1 AFR accuracy across its 10:1-20:1 reading range with the Bosch LSU 4.9 sensor. This level of accuracy is sufficient for performance tuning, dyno sessions, and street monitoring applications.

Does the AEM 30-4110 have an analog output for data logging?

Yes. The 30-4110 includes a 0-5V analog output for connection to dataloggers, standalone ECUs, or piggyback fuel controllers that accept a wideband voltage reference signal.

Is the AEM 30-4110 compatible with E85?

Yes. The AEM 30-4110 works with E85, gasoline, methanol, and other common fuel blends. Users should account for E85's different stoichiometric AFR when interpreting gauge readings, as the ideal AFR target for E85 is approximately 9.8:1 versus 14.7:1 for gasoline.

What gauge panel size does the 30-4110 fit?

The AEM 30-4110 uses a 52mm gauge housing, which is the standard metric gauge size for A-pillar pods, custom dash panels, and roll cage mounting brackets used in performance builds.

Does the 30-4110 work on a diesel engine?

The AEM 30-4110 can function on a diesel application, though diesel uses a different oxygen content model than gasoline. The gauge will display accurate lambda/oxygen data, but interpreting AFR numbers for diesel requires understanding different lambda targets versus gasoline tuning.

Is the AEM 30-4110 covered by a warranty?

AEM Performance Electronics provides a limited warranty on their gauge products against defects in materials and workmanship. Refer to the included documentation or AEM's website for current warranty terms and conditions for the 30-4110.

Installation Instructions

  1. Select an exhaust location for the oxygen sensor bung, 18-24 inches downstream from the last exhaust manifold collector and before the catalytic converter.
  2. Weld the included 18mm bung into the exhaust pipe and allow it to cool completely.
  3. Thread the Bosch LSU 4.9 sensor into the bung and torque to the manufacturer's spec.
  4. Route the sensor harness to the gauge location, keeping it clear of heat sources above 200 degrees Fahrenheit.
  5. Mount the 30-4110 in the 52mm gauge location.
  6. Connect the wiring harness: 12V key-on power, chassis ground, and sensor harness connections per the wiring diagram in the instructions.
  7. If connecting the 0-5V analog output, route and connect the signal wire to the datalogger or ECU input.
  8. Turn on the ignition and allow the gauge approximately 30 seconds to calibrate before reading live data.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.

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