2023 Peterbilt 389-123 Cummins X15P-500HP 18 speed manual (RTLO18918B) 498,052 miles 15,167 hours 13.2K LB steer axle 46K LB rear axles 13.2K LB drop axle Full lockers Double frame insert 3.73 gear ratio 248" wheel base Air trac suspension 11R22.5 tires All aluminum wheels Disc brakes Fixed fifth wheel Vertical exhaust stack Smart steering wheel Leather seats Ex guard bumper Balance of Cummins 5 year/600K mile engine and aftertreatment warranty until 6-15-27 Please call Missoula for more info