AEM Bosch LSU 4.9 UEGO Replacement O2 Sensor

The AEM Bosch LSU 4.9 UEGO Wideband Oxygen Sensor is a direct replacement sensor designed for AEM wideband air/fuel ratio monitoring systems. Built for accurate AFR feedback and fast-response monitoring, the LSU 4.9 sensor is commonly used in tuned Subaru WRX and STI applications running upgraded turbo systems, E85, standalone ECUs, or custom tuning setups.

Designed for use with AEM X-Series and UEGO wideband controllers, this genuine Bosch sensor provides reliable air/fuel ratio data critical for street, track, and motorsport applications.

Ideal as a replacement sensor for aging or contaminated wideband systems.

Features:

• Genuine Bosch LSU 4.9 sensor
• Direct replacement UEGO wideband sensor
• Fast-response AFR monitoring
• Accurate air/fuel ratio feedback
• Compatible with AEM wideband systems
• Ideal for turbocharged and E85 applications
• Motorsport-proven sensor design

Specifications:

• Sensor Type: Bosch LSU 4.9
• Application: Wideband AFR monitoring
• Fuel Compatibility: Gasoline / Ethanol / Methanol
• Connector Type: OEM Bosch connector

Part Number:
30-2001