32 1 2021 Peterbilt 389 Day Cab Truck - Cummins 500HP, 13 Speed Manual $104,900 USD 2021 Peterbilt 389 – Cummins X15 / 13-Speed / Full Lockers / Wet Kit, Stock #6912C | 610,323 Miles | 500 HP | Class 8 Heavy Duty Just in — sharpblack 2021 Peterbilt 389powered by aCummins... ConditionUsedUsage610,323 MilesDuty ClassHeavy Duty Day Cab TruckHorse Power500 HPEngine ModelCummins X15Drivetrain6x4Transmission13 Speed ManualSuspension4 Bag Air RideRear AxleTandem AxleRear End38,000 lb 3.70 ratioStock Number6912C MLS Number13907415CategoryDay Cab Semi Trucks Last Updated12/14/2025 LocationPalmetto, GA, US Sold By7E Truck Sales, LLC (833) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info