2024 Peterbilt 548, Cab Height: , PACCAR, PX-9, 350HP, Allison 6 Speed Transmission, Day Cab, Roll-Off, Amrep, Stock # 1713721 2025 Peterbilt 548 Roll Off. Body Currently being installed by AMREP. PACCAR, PX-9, 350HP, Allison 6 Speed Transmission. Pictures shown are example only. Tarp install is optional. Call Sylmar For Specs and quote.