2022 Kenworth T680

Duty cycle shows up in the odometer, 510,000 miles points to steady highway time and a chassis that has lived in the seat, not parked. Conventional sleeper layout fits long pulls and multi day turns, with inspection priority on driveline lash, cooling system health, and air system dryness after sustained run hours. Powertrain details are not provided, so verification needs to start at the data plate and dash, engine family, horsepower rating, transmission model, and rear ratio. ECM status is listed blank, so treat it as unknown until an ECM report is pulled, check for active and inactive fault history, regen frequency, idle percentage, and any torque management or parameter changes. Frame rails and crossmembers should be checked for straightness, corrosion at fastener points, and any evidence of prior repairs around suspension hangers and fifth wheel mounts. Fifth wheel jaws, top plate, and slider rails are common wear points at this mileage, look for jaw wear, sloppy lock action, and cracked welds at the mounting brackets. Cab interior and sleeper components need a practical wear read, seat base play, pedal wear, steering wheel shine, and bunk hardware integrity. Air lines, wiring looms, and battery box mounts deserve a close look for chafe and unsupported runs, especially around the back of cab and frame pass throughs where road vibration shows up first.