Volvo VNL Gen III Fuel Tanks

Frequently Asked Questions About Volvo VNL Gen III Fuel Tanks

What capacity options are available for Volvo VNL Gen III fuel tanks, and which models are they compatible with?

Our Volvo VNL Gen III fuel tanks come in multiple capacity options ranging from 100 to 150 gallons per tank. These tanks are specifically designed for 2018 and newer Volvo VNL models (Generation 3). The most common configurations include single 120-gallon tanks, dual 120-gallon setups, and dual 150-gallon options. Always verify your truck's specific year and OEM with our team to ensure proper fitment, as some early 2018 models may have different mounting configurations.

Are these fuel tanks made of aluminum or steel, and what finish options are available?

We offer both aluminum and steel fuel tank options for the VNL Gen III. Aluminum tanks are lighter weight (approximately 40% lighter than steel) and naturally corrosion-resistant, while steel tanks provide durability at a lower price point. Finish options include polished aluminum, brushed aluminum, powder-coated steel in black or white, and plain steel ready for custom painting. Polished aluminum requires regular maintenance to maintain its shine, while powder-coated options offer the best long-term appearance retention.

What mounting hardware and additional parts do I need for installation?

Each fuel tank requires specific mounting straps, brackets, and hardware that vary based on your truck's configuration. You'll need tank straps (typically 2 per tank), mounting brackets, rubber isolators, and grade 8 bolts. For dual tank setups, you'll also need a crossover line kit and potentially a new fuel gauge sending unit. We recommend purchasing complete mounting kits specific to your tank size and truck configuration to ensure you have all necessary components. Installation typically takes 3-4 hours per tank for experienced technicians.

Will aftermarket fuel tanks affect my warranty or fuel gauge accuracy?

Quality aftermarket fuel tanks that meet OEM specifications should not affect your truck's warranty when properly installed. However, we always recommend checking with your dealer if you're within warranty period. Regarding fuel gauge accuracy, you may need to recalibrate your fuel gauge or replace the sending unit to match your new tank's dimensions. Some customers report needing to update their truck's ECM parameters for accurate fuel level readings, especially when changing tank capacities.

How do I determine if I need a left side, right side, or dual tank setup?

Tank positioning is determined when viewing from the rear of the truck - driver's side is left, passenger side is right. Most VNL Gen III trucks come with dual tank configurations. To determine what you need, check your current setup and consider your range requirements. Single 120-gallon tanks provide approximately 600-700 miles of range, while dual 150-gallon setups can extend range to 14,00-1,800 miles depending on your fuel efficiency. Remember that dual setups require additional components including crossover lines, valves, and potentially upgraded fuel pumps.