Fuel Tech WB-O2 Sensor w/o Weld Bung

The Bosch LSU 4.2 Wideband O2 sensor is a crucial component for monitoring and optimizing engine performance, delivering accurate measurements of your engine's air-fuel ratio in real-time, determining the lambda value.

The Bosch LSU 4.2 WB-O2 sensor is compatible with unleaded gasoline, ethanol gasoline blends, methanol, and diesel. However, the sensor's lifespan is significantly reduced when used with leaded fuel, diesel, or in 2-stroke engines.

Thread Size:
The Bosch LSU 4.2 sensor has a thread size of M18 x 1.51.

Installation and Calibration:
To operate the sensor effectively, you’ll need to pair it with a wideband O2 signal conditioner (also referred to as a wideband O2 controller). When paired with a FuelTech wideband O2 controller, the sensor is automatically calibrated.