2023 Kenworth T680

Duty cycle shows up in the odometer, 577,155 miles points to steady highway time and a truck that has lived in the lane more than the yard. Used condition at this mileage puts inspection priority on consumables and heat cycles, cooling package, charge air plumbing, aftertreatment health, and driveline joints. Powertrain details are not provided, so verification needs to start at the data plate and dash build info, engine family and rating, transmission model, and rear ratio. ECM information is listed as blank, so a scan for active and inactive codes, regen history, soot load trends, and any derate events is a must before assigning value, along with a road test to confirm shift quality, boost response, and cruise stability. Frame rails and crossmembers should be checked for straightness, corrosion at fastener points, and any added holes from prior equipment, especially around the fifth wheel area and rear suspension hangers. Fifth wheel condition comes down to top plate wear, jaw lock operation, and slider rail play if equipped. Cab upholstery, sleeper trim, and seat bases tend to show the true duty cycle, look for driver-side wear, broken plastics, HVAC performance, and any dash warning history tied to electrical grounds. Serviceability hinges on maintenance records and a clean baseline inspection, oil sample, coolant test, and a full air system leak-down. Tires, brakes, and alignment wear patterns will tell you if it has been tracking straight or fighting suspension or steering issues, and they are the quickest read on how it has been treated between PM intervals.