BWD Knock Sensor Connector (PT5811) Offering hundreds of high-quality pigtails & sockets for nearly every electrical job Utilizing high grade materials to ensure peak conductivity and perfect connections Decades of industry leading research and development focused on meeting the technicians needs With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product