Frequently Asked Questions About Freightliner FL70-FL80 Air Tanks, Wraps & Mounting

What years and models of FL70/FL80 trucks are these air tanks compatible with?

Our air tanks are designed to fit Freightliner FL70 and FL80 models from 1994 through 2007. However, compatibility can vary based on your specific truck configuration, engine type, and existing mounting brackets. We recommend checking your current tank dimensions and mounting bolt patterns before ordering. If you're unsure, contact our support team with your VIN number for exact fitment verification.

Are these air tanks made of steel or aluminum, and which is better for my application?

We carry both steel and aluminum air tanks. Steel tanks are more budget-friendly and highly durable, but they're heavier and can rust over time if the coating is damaged. Aluminum tanks cost more upfront but offer significant weight savings (typically 50-60% lighter), won't rust, and provide better long-term value in corrosive environments. For trucks operating in northern states with heavy road salt exposure, aluminum is often the better investment.

Do I need special tools or professional installation for mounting these air tanks?

Basic installation typically requires standard hand tools including wrenches, sockets, and a torque wrench. Most experienced mechanics or fleet maintenance personnel can complete the installation in 1-2 hours per tank. However, you'll need to properly drain and depressurize your air system before starting. Some installations may require minor bracket modifications or drilling, depending on your truck's configuration. Always follow DOT regulations for air system modifications.

What's included with the tank wraps, and will they fit my existing tanks?

Tank wraps are typically sold as covers only and don't include mounting hardware, which uses your existing straps or bands. Our wraps are designed to fit standard 20-inch to 25-inch diameter tanks, with lengths ranging from 24 to 30 inches. They're made from either polished stainless steel or chrome-plated steel, with stainless being more durable and resistant to pitting. Measure your current tank dimensions carefully, as wrap fitment is critical for a professional appearance.

How do I know when it's time to replace my air tanks rather than just adding wraps?

Replace your air tanks immediately if you notice any cracks, deep pitting, significant rust penetration, or if they fail to hold pressure. Surface rust alone doesn't require replacement, but tanks over 10-15 years old should be inspected annually. If your tanks are structurally sound but cosmetically worn, wraps are an excellent option. However, never use wraps to hide structural damage - this is both dangerous and illegal under DOT regulations.