New Peterbilt 389 2025 Specs. New 2025 peterbilt 389 ultra cab with stacks with 132 inch ari legacy custom rdfsuc sleeper, 565 hp x15 cummins engine, eaton 18 speed manual transmission, 322 inch wb. The model 389x turns heads and captures hearts of every driver as it embodies the spirit of trucking with its.
Stock #9rd600804 mileage 0 engine cummins x15 application. The 389x embodies the heritage of the model 389 with its bold styling and bright exterior features.