AEM Bosch LSU 4.9 UEGO Wideband Oxygen Sensor Replacement for AEM Controllers

2025-08-18T16:57:47-06:00

Vendor: AEM
Type: Oxygen Sensors
Price: 149.95

AEM Bosch LSU 4.9 UEGO Wideband Oxygen Sensor is a high-quality replacement sensor designed for use with compatible AEM wideband UEGO controllers. Built around genuine Bosch LSU 4.9 technology, it delivers fast, stable readings to support accurate air/fuel ratio (AFR) monitoring—ideal for performance tuning, diagnostics, and high-load driving conditions.

Key Features

Direct replacement oxygen sensor for compatible AEM UEGO wideband controllers

Bosch LSU 4.9 wideband sensor element for reliable accuracy

Fast response for dependable AFR tracking during tuning

Premium construction suited to performance applications

Vehicle Fitment

Check your vehicle details before ordering.

Fitment disclaimer: This sensor must match your controller and existing sensor specification before purchase.

Benefits

Helps maintain precise AFR data for safer tuning and engine protection

Improves consistency of wideband readings compared to worn sensors

Supports confident adjustments for power, economy, and drivability

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