Bosch LSU4.9 Wideband Sensor Extension Harness

Bosch LSU4.9 Wideband Sensor Extension Harness is a 60-inch (5 ft) extension cable designed to relocate a Bosch LSU4.9 wideband O2 sensor while preserving a plug-and-play connection to an AEM WBO2 wideband controller. This 5-ft extension adds reach between the sensor and the controller, enabling installation flexibility in engines and exhaust layouts without altering the original sensor harness. It is marketed specifically as an LSU4.9 extension for Bosch wideband sensor systems used with AEM WBO2, maintaining the LSU4.9 interface to support accurate AFR readings. The 60-inch length accommodates common under-hood routing requirements, such as positioning the sensor where heat or clearance would otherwise limit placement. This extension is intended for automotive tuners and shops that need extended sensor reach while keeping a straightforward wiring path to the WBO2 controller.