Genuine Bosch LSU 4.9 Wideband O2 AFR Sensor. Replacement sensor for LSU 4.9 wideband controllers such as AEM, Innovate, Spartan and many more. Sensors can become damaged due to impacts or extreme operating conditions. This genuine Bosch wideband sensor is the best replacement sensor available, guaranteeing optimum, accurate performance.
The Bosch LSU 4.9 sensors have a laser-etched, calibrated resistor in the sensor’s connector body. This wideband sensor is laboratory-calibrated at the Bosch factory to be accurate to 0.1 AFR. Compatible with both controllers that require free-air calibration such as the Innovate LC2, and those that do not, such as AEM X-Series widebands. The attached plug and play connector plugs directly into all aftermarket wideband controllers.