Outfit your semi to be Ready for the Road Ahead with instant electric power to accessories, with the Phillips 100' 4-Gauge Bulk Booster Cable. With an ultra-conductive body, this replacement cable acts as a connector between the battery and the vehicle's electrical components, transferring energy the moment the ignition is engaged. Manufactured with a full-sized copper gauge for optimal current transfer. FleetPride is your First Click in Heavy Duty .