2022 Kenworth T680

Category, Truck, conventional sleeper. Mileage at 346,000 points to a highway duty cycle with steady heat cycles and long service intervals, the kind of use where maintenance records, aftertreatment health, and coolant and oil sampling matter more than cosmetic shine. Powertrain details are not provided, so engine family, transmission model, axle ratio, and emissions configuration cannot be verified from the listing alone. Serial number 1XKYDP9X9NJ100040 and stock number 0634534 are the right identifiers to pull build spec, warranty history, and any campaign work, ECM hours and idle percentage are also worth confirming since they often tell a different story than odometer miles. Frame rails and crossmembers should be checked for straightness, drilled holes, and corrosion at fastener points, especially around suspension hangers and the fifth wheel area. Fifth wheel top plate wear, slider travel, and air line routing are common inspection points at this mileage, along with steer axle tire wear patterns that can flag alignment, kingpin, or ride height issues. Cab interior and sleeper components tend to show real use by this point, seat base play, pedal wear, HVAC performance, and bunk HVAC controls are quick tells. Aftertreatment condition should be evaluated by fault history and soot load behavior, with a close look at exhaust joints for leaks and any signs of repeated regen events or derate history.