QFS Wideband Oxygen O2 Sensor for Digital Gauges

Key features

• Premium replacement 5-wire wideband lambda oxygen sensor, SKU: HFP-WBS49, engineered specifically as a direct-fit replacement sensor for digital wideband air-fuel ratio (AFR) gauge controllers and tuning systems requiring an LSU 4.9 configuration.
• Precision Controller Compatibility: Specifically engineered as a direct replacement for the AEM 30-2004 sensor; compatible with the AEM 30-4110 Digital Wideband, AEM 30-0300 X-Series, and various Autometer, FAST, and Dynojet controllers
• LSU 4.9 Architecture: Utilizes the superior Bosch LSU 4.9 design, offering faster light-off times and higher accuracy than older 4.2 sensors, all without the need for periodic "free-air" calibration
• Extensive Cross-Reference: Replaces multiple performance and OEM part numbers, including Autometer 2243, FAST 170408, AC Delco 213-1572, and GM 12575657
• Important Fitment Note: This sensor features the ROUNDED electrical plug. Please verify your harness before purchasing, as this unit will NOT work with controllers requiring a square-style connector

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