2023 Mack AN64T70

Category, Truck. Mileage shows a highway-duty life, 279,000 miles is enough to judge wear patterns without being end-of-life for a modern sleeper. Condition is used, so expect normal cosmetic scuffs at steps and grab points, plus typical driveline lash and suspension bushing wear that starts to show up in this range. Powertrain details are not provided, so engine family, transmission, and rear ratio cannot be tied to a specific duty cycle. ECM status is not listed, so any evaluation should include a scan for active and inactive fault history, aftertreatment performance data, regen counts, and a look at soot load trends to confirm it has not been living in forced-regens. Frame rails and crossmembers should be checked for straightness, corrosion at fastener points, and any added holes or bracket changes from prior fleet spec. Fifth wheel condition should be verified at the top plate, jaw wear, and slider rail play, along with air line routing and gladhand condition. Cab interior should be judged at seat base wear, sleeper trim, HVAC performance, and dash switchgear, since those are the first places high-mileage sleepers show how they were treated. Identification is clear for paperwork matching, VIN 1M1AN4GY2PM034307, stock B3728P.