AEM FAE Wideband Uego Replacement Sensor - 30-2404

The AEM FAE Wideband UEGO Replacement Sensor (Part # 30-2404) is AEM's purpose-built replacement O2 sensor for enthusiasts and tuners who demand accurate, reliable air-fuel ratio monitoring. Designed specifically as a replacement for AEM wideband gauge systems carrying a 0300-series part number with a 0400 serial number, this sensor keeps your AEM wideband gauge performing at its best — whether you're on the street, at the track, or on the dyno. If you depend on your AEM AFR gauge for tuning decisions, this is the OE-matched sensor to keep it reading true.

Key Features & Benefits

• ±1% Accuracy: The AEM FAE sensor is engineered to deliver ±1% air-fuel ratio accuracy, giving tuners and engine builders the precise data they need to safely optimize fuel maps and avoid dangerous lean conditions.
• Compatible with Leaded and Unleaded Race Fuels: Unlike many standard wideband sensors, the 30-2404 is rated for use with both unleaded and leaded race fuels, making it a strong choice for motorsport and competition applications where exotic fuel blends are common.
• Improved Mechanical and Electrical Failure Protection: AEM specifically designed the FAE sensor to extend mechanical and electrical failure protection compared to earlier sensor generations, helping reduce unexpected sensor failures during critical tuning sessions or events.
• Direct Replacement for AEM 30-0300 Systems: This sensor is a confirmed drop-in replacement for AEM part #30-0300 wideband systems (with 0400 serial numbers), eliminating guesswork and ensuring plug-and-play compatibility with your existing AEM wideband setup.
• Replaces Part # 17025: The 30-2404 is also listed as a replacement for part number 17025, broadening its compatibility across earlier AEM sensor applications.
• AEM's Newer FAE Platform: The FAE (Fuel/Air Equipment) sensor represents AEM's current-generation wideband sensor technology, reflecting their ongoing development in AEM gauges and sensing accuracy.

Specifications

• Part Number: 30-2404
• Brand: AEM Electronics
• Sensor Accuracy: ±1%
• Fuel Compatibility: Unleaded and leaded race fuels
• Compatible Gauge/Controller: AEM Part #30-0300 (with 0400 serial number)
• Replaces: Part # 17025
• Type: Wideband UEGO (Universal Exhaust Gas Oxygen) replacement sensor

Fitment

The AEM 30-2404 is not a vehicle-specific O2 sensor — it is a gauge/controller-specific replacement sensor. It is confirmed compatible with AEM Part #30-0300 wideband air-fuel ratio systems that carry a 0400 serial number. If your AEM wideband controller or gauge uses a different part number or serial number series, verify compatibility with your gauge's documentation or contact AEM Electronics before ordering. This sensor is not a universal OBD-II replacement sensor for a factory ECU; it is designed exclusively for use with compatible AEM wideband measurement systems.

What's in the Box

Based on available product information, the 30-2404 package includes the AEM FAE Wideband UEGO replacement sensor. Hardware or bung fittings are not confirmed as included — if you are installing into a new bung location, ensure you have the appropriate weld bung and fittings on hand before installation.

Why Buy from ThreePiece.us

• Free Shipping on Every Order: The AEM 30-2404 ships free to your door — no minimum order required.
• Affirm Financing Available: Split your purchase into manageable payments with Affirm financing at checkout, so you can get your wideband system back up and running without delay.
• Expert Support: Our team understands performance gauges, sensors, and tuning equipment. If you have questions about whether the 30-2404 is the right replacement for your AEM setup, reach out before you order — we're here to help you get it right the first time.

Frequently Asked Questions

A: The AEM 30-2404 FAE Wideband UEGO Replacement Sensor is confirmed compatible with AEM Part #30-0300 wideband systems that carry a 0400 serial number. It also replaces Part #17025. If you're unsure of your gauge's part or serial number, check the label on your controller or consult your original gauge documentation.

A: Yes. The AEM 30-2404 is specifically rated for use with both unleaded and leaded race fuels, which makes it suitable for a wide range of motorsport and track-day applications where leaded fuels may be used.

A: The 30-2404 is designed as a direct replacement sensor for compatible AEM wideband systems (30-0300 with 0400 serial number). While it is engineered for straightforward replacement, always refer to your AEM gauge's installation instructions to confirm connector compatibility before installation.

A: AEM rates the 30-2404 at ±1% accuracy. AEM has also noted that their FAE sensor platform offers improved mechanical and electrical failure protection relative to earlier sensor designs, representing their current generation of wideband sensing technology.