- SUPERIOR QUALITY FOR OPTIMUM PERFORMANCE. Our sensors are rigorously tested at the factory to ensure you never need a replacement.
- FITS AEM 30-4110 and 30-0300 (NOT FAE SENSOR GAUGE), as well as others made by Autometer, FAST, Dynojet, and PLX Devices
- Replaces AEM 30-2004, Autometer 2243, FAST 170408, AC Delco # 213-1572, GM # 12575657
- NOTE: THIS SENSOR HAS A ROUNDED PLUG. IF YOUR PLUG IS SQUARE ON ALL SIDES, YOU NEED THE LSU 4.2 SENSOR

ZEITRONIX WIDEBAND LAMBDA Replacement Bosch O2 Sensor LSU 4.9 








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