Peterbilt 389 Diesel Fuel Tanks
Why Upgrade Your Pete 389 Aluminum Fuel Tank?
- Tough, Lightweight Construction: Aluminum resists corrosion and weighs less than steelâgreat 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 truckâs plumbing and refueling needs. - More Fuel = Fewer Stops: Go longer between fuel-ups with larger capacity optionsâideal for long hauls. - Ready to Install: Available with driver-side or passenger-side mounting. Just rememberâyouâll 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 setupâor 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, thereâs 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 youâre upgrading sizes for better fuel range, our aftermarket Peterbilt 389 fuel tanks deliver the performance, reliability, and fit you need.Frequently Asked Questions About Peterbilt 389 Diesel Fuel Tanks
What size fuel tanks are available for my Peterbilt 389, and how do I determine the right capacity?
Peterbilt 389 fuel tanks typically range from 100 to 150 gallons per side, with 120-gallon tanks being the most common configuration. To determine the right capacity, consider your typical route distances and fuel consumption. Long-haul drivers often prefer dual 150-gallon tanks for 300 gallons total capacity, while regional haulers may find dual 120-gallon tanks sufficient. Check your truck's spec sheet or measure your existing tanks (length x height x width) to ensure proper fitment. Remember that larger tanks add weight and may affect your payload capacity.
Will these fuel tanks fit my specific year model Peterbilt 389?
Our fuel tanks are designed to fit Peterbilt 389 models from 2007 through current production years. However, mounting brackets and strap configurations can vary between model years and specific build configurations. Pre-2012 models may require different mounting hardware than 2012-present models. Extended hood models may have different spacing requirements than standard hood configurations. We recommend providing your VIN or calling our technical support team to verify exact fitment for your specific truck before ordering.
What material options are available, and which is best for my application?
We offer both aluminum and steel fuel tanks for the Peterbilt 389. Aluminum tanks are lighter (approximately 50% less weight than steel), resist corrosion better, and are ideal for weight-conscious operations or coastal regions with high salt exposure. Steel tanks are more economical upfront, offer better puncture resistance, and can be repaired more easily if damaged. Most over-the-road applications benefit from aluminum tanks due to weight savings, while vocational trucks in construction or logging may prefer steel for durability.
Can I install these fuel tanks myself, or do I need professional installation?
While experienced mechanics can install fuel tanks themselves, we recommend professional installation due to safety and regulatory requirements. Installation typically takes 4-6 hours per tank and requires draining existing fuel, disconnecting fuel lines and sending units, removing old tanks, mounting new tanks with proper brackets and straps, reconnecting all components, and testing for leaks. You'll need specialized tools including tank straps, proper lifting equipment, and knowledge of DOT regulations for fuel system modifications. Improper installation can lead to fuel leaks, tank damage, or DOT violations.
Do these tanks come with all necessary mounting hardware and fuel system components?
Our fuel tanks typically include the tank shell with baffles, but mounting hardware and fuel system components are often sold separately. You'll need to order tank straps, mounting brackets, fuel sending units, fuel caps, and crossover lines specific to your application. Some tanks include ports for sending units and vents, while others require drilling. We offer complete installation kits that include all necessary hardware for specific Peterbilt 389 configurations. Contact us with your truck specifications to ensure you receive all required components for a complete installation.
