2025 Peterbilt 548, PACCAR, PX-9, 350HP, Allison 6 Speed Transmission, Day Cab, , , Stock # 1815853 The Peterbilt Model 548 was designed to exceed the rigid demands of specialty application markets that require rugged durability. This truck features the powerful PACCAR PX-9 engine with 350 horsepower, Allison 6-speed 3000 RDS transmission, Peterbilt Air Trac suspension and 66,000 lb. GVWR. Don t hesitate to call or come by Rush Truck Center - Tolleson and let one of our sales professionals find the right body option to get this truck on the road for you! Financing options are available.