Frequently Asked Questions About International DuraStar Air Tanks, Wraps & Mounting

What International DuraStar model years are these air tanks compatible with?

Our air tanks are designed to fit International DuraStar models from 2002 to present, including the 4200, 4300, and 4400 series. However, there are slight mounting bracket variations between pre-2007 and post-2007 models. Always verify your specific VIN and model year when ordering, as some chassis configurations may require different mounting hardware. We recommend checking your existing tank dimensions and port locations before purchasing.

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

We offer both steel and aluminum air tanks. Steel tanks are more economical and extremely durable, typically lasting 10-15 years with proper maintenance, but they're heavier and prone to rust if the coating is damaged. Aluminum tanks cost about 40% more but are 60% lighter, naturally corrosion-resistant, and ideal for weight-sensitive applications or coastal environments. Most fleet operators choose steel for cost-effectiveness, while owner-operators often prefer aluminum for longevity and weight savings.

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

Basic installation requires standard hand tools including wrenches, sockets, and a torque wrench. Most installations take 2-3 hours for experienced mechanics. The mounting brackets typically bolt directly to existing frame holes, though some applications may require drilling. Critical considerations include proper air line routing to prevent chafing, using thread sealant on all fittings, and torquing mounting bolts to 65-75 ft-lbs. We strongly recommend having a certified mechanic perform the installation if you're not experienced with air brake systems.

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

Our tank wraps are universal-fit stainless steel covers designed for standard round air tanks from 20" to 25" in length and 8" to 9.5" in diameter. Each wrap kit includes the polished stainless cover, adjustable mounting straps, and rubber isolation strips to prevent metal-to-metal contact. They're split-design for easy installation without removing the tank. Note that wraps add approximately 1/2" to the overall diameter, so ensure you have adequate clearance.

How do I know if I need to replace my air tank versus just adding a wrap?

Replace your air tank immediately if you notice any of these conditions: visible rust holes, deep pitting covering more than 25% of the surface, audible air leaks, or moisture in your air lines despite functioning dryers. Surface rust or minor cosmetic damage can be addressed with a wrap for appearance, but wraps are purely aesthetic and won't fix structural issues. Federal DOT regulations require tank replacement if wall thickness is reduced by more than 20%. When in doubt, have a qualified technician perform a visual inspection during your next PM service.