2027 Dragon 140BBL

Category: Trailers (Vacuum). Capacity profile centers on a 140BBL vacuum tank, aimed at high-volume liquid waste, frac water, and industrial cleanout moves where payload is measured in barrels, not deck space. New condition with zero mileage points to no prior duty cycle, so wear patterns on the tank, plumbing, and running gear should be absent aside from transport handling. Tank system utility depends on vacuum and pressure integrity, so the first checks are manway lids, gasket seating surfaces, and all weld seams for uniform bead and clean heat marks. Valving and plumbing should be verified for smooth handle travel, correct labeling, and tight threaded or flanged joints, with particular attention to drain points and any low spots that can trap solids. Running gear inspection should focus on suspension hangers, torque on U-bolts, and straight tracking at the axles, along with brake chamber clocking and air line routing to avoid rub-through. Kingpin plate and upper coupler area should show clean machining, even grease coverage once put in service, and no shipping dents or paint cracks around the neck and crossmember tie-ins. Identification tags and paperwork should be matched to Serial Number 1UNST4522VL213134 and Stock Number 74136, with baseline photos taken now for future maintenance tracking. ECM field is blank, which is typical for a trailer, but any electronic pump controls, ABS, or lighting modules should be confirmed by function test during pre-delivery.