TRADITIONAL - Model 389 Setting New Expectations The Peterbilt Model 389 is the flagship of premium traditional trucks with aerodynamic enhancements and innovative solutions that provide owner operators with the exceptional quality, value and style they deserve, and fleets with the ultimate driver retention tool. The Model 389 features the industry’s only aluminum hood with a 131” BBC and Peterbilt’s lightweight, all-aluminum cab. Three premium cab interior options are available as well as a full selection of detachable and comfortable Unibilt® sleepers including the ultimate in luxury, the 70” Platinum Level sleeper. A series of aerodynamic enhancements with an optional roof fairing help make this the most fuel efficient traditional Peterbilt ever built. The Model 389 is an uncompromising blend of old world craftsmanship and new world sophistication, and the industry leader in traditional styling, quality and resale value.