2024 Peterbilt 389 Day Cab Specs. In 2006, the famous peterbilt model 389 proudly took its role as the torch bearer for peterbilt’s iconic legacy of power, capability, luxury and style. Known as one of the most powerful tractors on the road, model 389 amassed.

Cummins x15 6 cylinder 15 l diesel 450 hp engine, 2017 us epa label, requires diesel exhaust fluid, 17059.2 engine. New 2024 peterbilt 389 ultra cab with stacks with 132 inch ari legacy custom rdfsuc sleeper, 565 hp x15 cummins engine, eaton 18 speed manual.