AEM 30-2404 FAE Wideband Replacement O2 Sensor for AEM 30-0300 Series

Vehicle Fitment

• Not vehicle-specific - this is a universal replacement sensor for AEM wideband gauge/controller kits (see Fitment Notes)

Fitment Notes

• Direct replacement sensor for AEM's Part #30-0300 X-Series Wideband UEGO AFR Gauge, and for kits originally equipped with the "0400" serial number sensor
• Not compatible with AEM wideband kits that originally shipped with a Bosch LSU 4.9 sensor - confirm your kit's original sensor type before ordering

Features

• Co-developed by AEM and FAE for faster response time and greater durability than the Bosch 4.9 LSU sensor
• Improved resistance to failure in high-performance, high-vibration racing environments
• Compatible with both unleaded and leaded race fuels
• Never requires free-air calibration when used with a compatible AEM controller and connector plug
• High-quality sealed sensor housing built for extreme motorsport conditions

Specifications

• Band Type: Wide
• Sensor Type: Heated
• Warranty: Manufacturer's 2-Year Extended Warranty
• UPC: 840879027247

Included Components

• 1x AEM/FAE Wideband Replacement O2 Sensor (30-2404)

Product Description

The AEM 30-2404 is a direct replacement wideband oxygen sensor for AEM's Part #30-0300 X-Series Wideband UEGO AFR Gauge and kits equipped with the "0400" serial number sensor. Co-developed with global automotive supplier FAE, this sensor was engineered specifically to address the shortcomings of the industry-standard Bosch 4.9 LSU sensor in demanding motorsport conditions.

While the Bosch 4.9 LSU offers strong light-off and response performance, it tends to degrade quickly in high-performance racing environments - leaded fuels, rich mixtures, 2-step rev limiters, and high-frequency vibration all take a toll. AEM's five years of development with FAE produced a sensor validated to last longer and respond faster under these same harsh conditions.

When paired with a compatible AEM controller and connector plug, this sensor never requires free-air calibration, simplifying setup for owners maintaining an existing AEM wideband system. It's backed by AEM's 2-year extended warranty, longer than the standard coverage on most wideband sensors.