2022 Kenworth T680

Duty cycle shows up in the odometer, 501,905 miles points to steady highway or high-utilization fleet service, not a low-use local tractor. Day cab layout keeps weight and wheelbase practical for regional lanes, port dray, and slip-seat operations where in-and-out access matters more than sleeper storage. Powertrain details are not provided, so engine family, transmission type, and axle ratio cannot be tied to a specific application. ECM status is not listed, so plan on verifying calibration history, fault codes, and aftertreatment health with a scan tool, plus confirming any programmed speed limits and idle management settings. Frame rails and crossmembers should be checked for straightness, corrosion at fastener points, and any evidence of added holes or repairs around suspension hangers. Fifth wheel condition should be judged by top plate wear, jaw operation, and slider rail play, plus air line routing and gladhand condition for chafe. Cab interior wear is the tell on a high-mile day cab, inspect seat base slop, pedal pad wear, steering wheel play, and HVAC performance. Cooling stack, charge-air piping boots, and exhaust aftertreatment clamps are common inspection points at this mileage, look for soot tracing, coolant residue, and heat-related cracking around mounts and shields.