2016 Mack GU713

Category: Trucks Duty cycle mileage suggests municipal and site work rather than long-haul, with wear typically showing up in mixer-specific systems, PTO engagement, driveline joints, and cooling package cleanliness. Serial 1M2AX04C3GM030435, stock B3848P, shows 104,237 miles, condition listed as used. Powertrain details are not provided, so verification should focus on engine family, transmission model, and any PTO provisions as-built. ECM information is not listed, so a scan for active and inactive codes, regen history, and aftertreatment health is a priority before putting it back into production. Frame rails and crossmembers deserve close attention for concrete splash corrosion, added brackets, and any evidence of cracking around rear suspension hangers and mixer mounting points. Driveline components, PTO shafting, and carrier bearings should be checked for play and grease condition, since mixer duty runs high torque at low road speed. Cab interior and controls should be evaluated for mixer-specific switchgear, PTO interlocks, and air system response, with special attention to brake treadle feel and air build time. Cooling stack and charge-air plumbing should be inspected for cement dust loading and seepage, since restricted airflow and oil residue are common contributors to overheating and boost leaks in this application.