2020 Kenworth T880

Duty cycle fitment, 534,500 miles suggests highway and vocational crossover use where steady-state running is common, with the kind of accumulated wear you typically see at cab entry points, steering components, and driveline joints. Identification, serial 1XKZD49XXLJ408205, stock 0631796, supports fleet tracking and service history verification, ECM details are not provided so engine hours and idle percentage should be pulled before assigning a true usage profile. Powertrain, engine, transmission, and axle ratio are not listed, so application matching should be confirmed by reading the door tag and driveline stamps, then cross-checking with an ECM report for fault history, regen counts if applicable, and total fuel used. Cooling stack condition, charge-air piping, and aftertreatment mounting should be inspected for soot traces, clamp witness marks, and heat shielding integrity, especially on a higher-mile daycab that may see frequent stop-start work. Frame rails, look for straightness at the rear suspension hangers and around any PTO or wet kit mounting points, plus corrosion at fastener heads and crossmember interfaces. Fifth wheel, measure jaw wear, check slider operation if equipped, and inspect air lines and gladhand seals for chafing and leaks. Cab interior, focus on seat base play, pedal wear, switchgear function, and HVAC performance, these are quick indicators of true cab hours when ECM data is unavailable.