2022 Kenworth T680

Category, Trucks. High-mileage highway service is the most likely duty cycle at 704k, so the value conversation centers on documented maintenance, aftertreatment history, and how the truck was spec’d for speed versus start-stop work. Powertrain details are not provided, so verification should start at the data plate and ECM pull, engine family, horsepower rating, transmission model, and rear ratio. Mileage at this level makes crankcase pressure checks, blow-by evaluation, coolant condition, and a full fault scan important, along with a review of DPF performance data, regen frequency, and any history of DOC, DPF, or SCR replacement. Frame rails and crossmembers should be checked for straightness, corrosion at fasteners, and any signs of prior repairs around suspension hangers and fifth wheel mounting points. Fifth wheel jaws, slide rails, and air lines are typical wear points at this mileage, as are driveline U-joints, carrier bearing play, and differential input seal seepage. Cab and sleeper condition should be judged by seat base wear, pedal pad wear, steering wheel play, HVAC operation, and dash warning history. Tires, brakes, and suspension bushings should be measured rather than eyeballed, with attention to uneven wear patterns that can point to alignment, kingpin, or air ride height issues. Serial number 1XKYD49X8NJ484732, stock 0633116.