2025 KENWORTH T680. 500 HP Cummins X15 Engine, 12,350 Front, 40,000 Rear, Eaton 12-Spd Trns, 76 in. High Roof Sleeper, and more. Coopersburg & Liberty Kenworth offers hundreds of new and used trucks and truck parts for sale in Pennsylvania and New Jersey. With convenient dealership locations in Coopersburg, PA (near Allentown); Swedesboro, NJ (near Philadelphia); Bristol, PA (near Philadelphia); and Pottstown, PA (near Reading), drivers can easily find trucks, parts, service, and body shop work with us.