2024 Kenworth T680

Category, Trucks. Mileage profile points to steady highway duty cycles with a lot of seat time, so the inspection priority is drivetrain lash, cooling system integrity, and aftertreatment history rather than cosmetic age. Serial 1XKYDP9X0RJ333956, stock 0636047. Powertrain details are not provided, so verification should focus on what is actually in the chassis, engine family tag, transmission model, rear ratio, and any PTO or wet kit provisions. ECM status is not listed, so confirm ECM part number, calibration level, fault history, and whether parameters show signs of tampering or frequent derates. Frame rails and crossmembers should be checked for straightness, corrosion at fastener points, and any evidence of added brackets or previous repairs. Fifth wheel condition, slider travel, and air line routing tell a lot about coupling wear and maintenance habits. Cab upholstery, sleeper trim, and pedal wear should match the stated miles, and the HVAC performance, window regulators, and dash switchgear are common high-use items worth cycling during a walkaround.