2015 Kenworth T680 Tandem Axle Sleeper. Cummins ISX engine!! 450 horse power, 10 speed Eaton Fuller transmission, drum brakes, air suspension, 210 gallons fuel capacity. Looking for service after the sale? Miller Contract Maintenance may be you solution. Utilize Miller locations throughout the Mid-Atlantic & Northeast Regions and beyond through our NationaLease affiliates! Need help with Financing? Miller Used Truck Center offers a full service finance department here to help you with competitive rates and get you moving forward quickly. After-Market extended service agreements available nationwide!