Volvo VNL Gen I Fuel Tanks

Frequently Asked Questions About Volvo VNL Gen I Fuel Tanks

What year models are compatible with these Gen I fuel tanks?

These fuel tanks are designed specifically for Volvo VNL models from 1996 to 2003, commonly referred to as Generation 1 VNL trucks. They will fit VNL420, VNL610, VNL660, VNL670, and VNL770 models within this year range. Always verify your specific OEM and model year before ordering, as mid-year production changes can occasionally affect compatibility.

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

Aluminum tanks are lighter (reducing overall vehicle weight by 50-100 pounds per tank), resist corrosion better, and typically last longer in harsh weather conditions. Steel tanks are more affordable upfront and more resistant to impact damage. Most owner-operators prefer aluminum for long-term cost savings and fuel efficiency, while fleet operators often choose steel for initial cost savings. Both materials meet DOT standards when properly maintained.

Do I need special brackets or hardware for installation?

Most replacement tanks use your existing mounting brackets and straps if they're in good condition. However, we recommend inspecting all mounting hardware during installation. You'll typically need new rubber isolators, mounting bolts, and fuel line connections. Some installations may require new sending units or fuel gauge sensors, especially when upgrading tank capacity. Professional installation usually takes 2-4 hours per tank.

What tank sizes are available and how do they affect my truck?

Common sizes range from 60 to 150 gallons, with 100 and 120-gallon options being most popular. Larger tanks reduce fuel stops but add weight and may require step relocations on some models. Consider your typical routes and weight restrictions. Dual 120-gallon tanks provide good range without excessive frame stress. Remember that larger tanks may slightly reduce ground clearance.

Are these tanks compatible with aftermarket fairings and side skirts?

Most standard round and D-shaped tanks work with factory aerodynamic packages. However, some aftermarket side fairings or fuel tank fairings may require specific tank styles or additional mounting modifications. Polished aluminum tanks may interfere with certain snap-on style tank covers. We recommend checking clearances if you have aftermarket aerodynamic additions, particularly full chassis skirts or custom step configurations.