2025 Peterbilt 548 6x4 Load King 4000 Gallon Water Truck

This Peterbilt 548 water truck is built for contractors and site operators who need a 4,000 gallon tank on a chassis that can handle rough ground and a full load. The Load King LKW4000S pairs a 4,000 gal modified ellipse tank with three lateral baffles, which limit surge when braking or working on grades, and the 3/16" ASTM A36 steel construction with interior coating is made for daily hard use. The PTO-driven pump delivers up to 800 gpm at 70 psi, and with two front, two rear, and one side spray valve, you can cover haul roads, lay down dust control, or fill other equipment quickly. The interior cab controls let the operator run the whole system without leaving the seat, and the 50' manual-rewind hose reel with an adjustable nozzle handles wash-down, hand watering, and fill work. Underneath, the 6x4 tandem layout with a 46,000 lb Hendrickson HMX EX 460 rear suspension, driver-controlled locking differential, and 66,000 lb GVWR gives you the traction and payload margin to haul a heavy tank over soft or uneven ground. The PACCAR PX-9 at 360 hp with an Allison 3000 RDS-P and exhaust brake keeps the drivetrain dependable, and the air brakes, engine block heater, and 80 gal fuel tank support long days and cold starts. The air ride driver seat, power windows and locks, and heated mirrors keep the operator comfortable through long shifts. The truck arrives ready to work on day one.