2020 Mack ANTHEM

Sleeper tractor with 340,000 miles, a mileage point that typically reflects steady highway duty cycles with normal wear showing up first in driveline slack, suspension bushings, and cab touch points. Serial 1M1AN4GYXLM014851, stock B3810P. Powertrain details are not provided, so engine family, transmission model, and axle ratio cannot be tied to a specific application beyond general linehaul and regional pull. ECM status is not listed, so verify active/inactive fault history, parked regen counts, and aftertreatment performance with a proper scan before assigning duty. Frame rails and fifth wheel area are the first stop on a walkaround, check for rail flange cracking around suspension hangers, evidence of prior repairs, and fifth wheel top plate wear, jaw condition, and slider rail play if equipped. Cab upholstery and sleeper trim should be checked for high-contact wear, HVAC performance, and dash warning history, then confirm air system build time, brake chamber condition, and steer tire edge wear patterns for alignment and kingpin clues.