Frequently Asked Questions About Kenworth T700 Diesel Fuel Tanks

What capacity options are available for T700 fuel tanks, and how do I determine which size I need?

Kenworth T700 fuel tanks typically range from 100 to 150 gallons per tank, with dual tank setups offering 200-300 gallon total capacity. To determine the right size, consider your typical route distances, fuel consumption rate, and weight restrictions. Long-haul drivers often prefer 150-gallon tanks for extended range, while regional haulers may opt for 100-120 gallon tanks to save weight. Remember that larger tanks add significant weight when full, which can impact your payload capacity.

Will these fuel tanks fit my specific T700 model year, and what mounting hardware do I need?

Our T700 fuel tanks are designed to fit model years 2008-2019, but mounting configurations can vary based on your truck's wheelbase and factory setup. You'll need to verify your current tank strap spacing and frame rail measurements. Most installations require tank straps, mounting brackets, and step assemblies specific to your configuration. We recommend checking your VIN with our parts specialists to ensure compatibility, as some model years have different crossmember placements that affect tank positioning.

What's the difference between aluminum and steel fuel tanks, and which should I choose?

Aluminum tanks are approximately 50% lighter than steel equivalents, resist corrosion better, and maintain a cleaner appearance with minimal maintenance. Steel tanks cost less upfront but require regular painting to prevent rust and add more weight to your truck. For most T700 applications, aluminum tanks offer the best long-term value despite higher initial cost. Steel tanks remain popular for severe-duty applications where impact resistance is prioritized over weight savings.

Can I install these fuel tanks myself, or do I need professional installation?

While experienced mechanics can install T700 fuel tanks in 4-6 hours, we recommend professional installation for safety and warranty reasons. The process involves disconnecting fuel lines, electrical connections, and potentially relocating DEF tanks or exhaust components. You'll need proper lifting equipment, as empty 150-gallon tanks weigh 100-150 pounds. Critical steps include ensuring proper venting, secure mounting, and leak-free connections. Improper installation can lead to fuel leaks, tank damage, or DOT violations.

What finish options are available, and how do they hold up to road chemicals and weather?

Our T700 fuel tanks come in three primary finishes: brushed aluminum, polished aluminum, and powder-coated steel. Brushed aluminum offers excellent durability with minimal maintenance needs and hides minor scratches well. Polished aluminum provides a mirror-like finish but requires regular polishing to maintain appearance. Powder-coated steel tanks feature a durable finish that resists chips and corrosion better than paint, though they still require periodic inspection for damage. All aluminum options naturally resist road salt and chemicals, while coated steel tanks need prompt attention to any coating damage to prevent rust.