TRADITIONAL - Model 389 Setting New Expectations The Model 389 offers a variety of front and rear suspension options including Peterbilt proprietary units that are lightweight for increased load capacity. A lightweight and durable hood is the industry’s only all-aluminum hood, with a rugged stainless steel grille that features a distinctive punched oval pattern and a one-piece, polished aluminum crown. A lighter weight cooling system provides increased capacity to accommodate the highest horsepower engines. Other features include a new fan shroud design and silicone hoses. The luxurious Platinum Level interior features a “soft-touch” padded dash, a GPS navigation system, LED backlit gauges, burl woodgrain and a powerful HVAC system for year round comfort.