2020 Kenworth T680

Category, Truck, box application. Mileage at 394,200 points to steady highway and regional duty cycles, so the value conversation centers on maintenance history, aftertreatment health, and driveline tightness rather than low-use cosmetics. Powertrain, ECM data not provided, so engine family, transmission model, and axle ratio cannot be tied to a specific duty profile. Inspection focus should land on cold start behavior, blow-by at the breather, coolant condition, charge-air leaks, and DPF regen frequency, plus shift quality and driveline lash under light throttle. Frame rails, look for straightness at the rear suspension hangers, evidence of prior repairs, and corrosion around crossmember joints. Fifth wheel, check plate wear, slider travel, and air line routing for rub points. Box body, verify floor integrity at the rear threshold, door hardware alignment, hinge pin wear, and seal condition, plus any scuffing or patchwork that suggests repeated dock impact. Cab interior, expect typical seat bolster wear and switchgear shine at this mileage, so confirm HVAC performance, dash warning history, and power window and lock operation. Identification, serial 1NKYLP9X2LJ397260 and stock 0631410 should be matched to service records, emissions component replacements, and any prior collision or frame work before putting it into a route plan.