2015-2016 Kenworth T880. 2013-2016 Kenworth T680. 2014-2016 Peterbilt 567. 2013-2016 Peterbilt 579. 2014-2015 Peterbilt 587. AC Condenser: The condenser is part of the A/C system. It receives the hot, high-pressure gaseous refrigerant from the compressor and cools it to a warm liquid state, although still under high pressure.