FET Included in Price. 2026 Cummins Power Roll-Off. X15 500V, Allison 4500RDS 6spd, 20K front, 46K rears with Chalmers 46K susp, Crosslock, Double frame, Full Truck Kit. 75K Hoist with Tarp. Coopersburg & Liberty Kenworth is a multi-location Kenworth dealer and one-stop destination for truck drivers. Conveniently located near Allentown, PA and Philadelphia, PA, all locations are easily accessible from major highways in Coopersburg, PA, Bristol, PA, and Swedesboro, NJ.