Keep your rig fueled and road-ready with our lineup of high-quality aftermarket diesel fuel tanks for the Peterbilt 389. Whether you're replacing a worn-out tank or upgrading to more capacity, we've got aluminum fuel tanks built to handle the miles.

Why Upgrade Your Pete 389 Aluminum Fuel Tank?

- Tough, Lightweight Construction: Aluminum resists corrosion and weighs less than steel—great for fuel efficiency and durability. - Built for the Road: These tanks are designed to handle vibration, heat, and the rough conditions of daily hauling. - Multiple Configurations: Choose from rear, front, or center-fill designs to match your truck’s plumbing and refueling needs. - More Fuel = Fewer Stops: Go longer between fuel-ups with larger capacity options—ideal for long hauls. - Ready to Install: Available with driver-side or passenger-side mounting. Just remember—you’ll need longer fuel hose connectors and larger tank straps or brackets when upgrading to a bigger tank. These tanks are available in rear-fill, front-fill, and center-fill designs, so you can choose what fits your current setup—or build the custom configuration that works best for your route. With capacities ranging from 80 gallons to 150 gallons and 23-inch or 26-inch diameters, there’s a tank here that fits your truck and your fuel range needs. Consider a full fuel tank storage upgrade: - Hydraulic Reservoir Tanks for combo fuel and hydraulic needs - Auxiliary Fuel Tanks for extra storage or specialized applications (not always in stock) - Tank Accessories including anti-theft fuel caps and secure fuel tank brackets and straps Whether you're replacing a damaged aluminum tank or you’re upgrading sizes for better fuel range, our aftermarket Peterbilt 389 fuel tanks deliver the performance, reliability, and fit you need.