25 2 2021 Peterbilt 389 Extended Cab – Cummins X15 / 13-Speed / 525HP Recently Updated $114,900 USD 2021 Peterbilt 389 Extended Cab – Cummins X15 / 13-Speed / 525HP Stock #6906C | 348,000 Verified Miles | DOT Ready Just in —low-mileage 2021 Peterbilt 389 Extended Cabpowered by aCummins X15... ConditionUsedUsage348,168 MilesDuty ClassHeavy Duty Day Cab TruckHorse Power525 HPEngine ModelCummins X15Drivetrain6x4Transmission13 Speed ManualSuspension4 Bag Air RideRear AxleTandem AxleRear End40,000 lb 3.70 ratioStock Number6906C MLS Number13916319CategoryDay Cab Semi Trucks Last Updated11/15/2025 LocationPalmetto, GA, US Sold By7E Truck Sales, LLC (833) 478-___ SHOWNUMBERCall Seller Email Seller Save More Info