Why CPP Diesel is the #1 Hub for ATI Fuel Tanks

If you’re searching for the best place online to buy ATI fuel tanks, look no further than CPP Diesel’s ATI hub. We stock the full line of Aluminum Tank Industries (ATI) products, from auxiliary diesel tanks to DOT-approved refueling tanks, toolbox combos, split designs, wedge tanks, and the ultra-tough Severe Series. Our mission is to make CPP Diesel the central authority and #1 Google destination for everything ATI.

What Makes ATI Tanks Different?

ATI (Aluminum Tank Industries) is known for its precision-built tanks made from thick, high-quality aluminum. Every tank is fully baffled to reduce slosh, pressure and leak-tested, and engineered for long service life. With ATI, you can count on:

• DOT-compliance: ATI refueling tanks are built under a special DOT permit, making them legal for fueling equipment in the field.
• Versatility: Choose between refueling and auxiliary tanks depending on your needs.
• Fitment options: L-shape models designed to fit beneath crossover toolboxes, rectangle tanks for maximum capacity, wedge tanks for fifth-wheel clearance, and split tanks for carrying multiple fuels.

ATI Standard Tanks vs. ATI Severe Series Tanks

One of the most common questions we hear from diesel owners is: “Should I buy a standard ATI tank or a Severe Series tank?” Here’s the breakdown:

ATI Standard Tanks

• Constructed from .125" aluminum (1/8” thick).
• Lightweight yet durable for daily use in farm, fleet, and contractor applications.
• Available in all core shapes: L-shaped, rectangle, wedge, split, and toolbox combos.
• Cost-effective solution for most truck owners.

ATI Severe Series Tanks

• Built from .190" aluminum (50% thicker material than standard).
• Extra strength for extreme-duty applications like oilfield service, off-road fleets, mining, and heavy construction.
• Available in popular shapes like L-shaped and rectangle, as well as toolbox combos.
• Longer service life under harsh conditions; ideal if your tank sees daily abuse.

Key takeaway: If you want the toughest, longest-lasting tank on the market, the ATI Severe Series is your best choice. For general farm, fleet, and personal use, ATI’s standard .125" aluminum line gets the job done at a lower cost.

Shop by ATI Tank Style

CPP Diesel organizes ATI tanks by style to make it easy for you to find the right fit for your truck:

• L-Shaped Tanks (TTL) – tuck under crossover toolboxes.
• Rectangle Tanks (TTR) – max capacity in compact footprints.
• Wedge Tanks (TTW) – ideal for 5th-wheel/gooseneck clearance.
• Split Tanks – carry two liquids in one tank.
• Tank + Toolbox Combos – fuel storage plus secure gear storage.
• Auxiliary Tanks (AUX) – gravity-feed your factory tank with Fuel Shotz kits.
• Severe Series – heavy-duty .190" aluminum for extreme use.

Why Buy ATI Tanks from CPP Diesel?

When you shop at CPP Diesel’s ATI hub, you’re getting more than just a tank. You’re gaining access to:

• Full product lineup: Every ATI tank style and size, all in one place.
• Expert guidance: Our team helps you choose between auxiliary vs. refueling, or standard vs. Severe Series.
• Internal resources: Each tank page includes dimensions, fitment, and FAQs tailored for diesel truck owners.
• Competitive pricing: We track market prices to deliver great value.

Frequently Asked Questions About ATI Tanks

Are ATI tanks DOT approved?

Yes. ATI refueling tanks are built under DOT special permits for legal dispensing of fuel. Auxiliary tanks are DOT-compliant for feeding the truck’s own tank.

What’s the difference between auxiliary and refueling tanks?

Auxiliary tanks connect to your factory filler neck (via Fuel Shotz kit), keeping your OEM tank full until the aux tank empties. Refueling tanks allow you to fuel equipment directly in the field.

Do ATI tanks fit with toolboxes?

ATI’s L-shaped tanks are specifically designed to fit beneath crossover/chest toolboxes, making them a popular choice for contractors and farmers.

Why choose Severe Series over standard?

If you work in extreme-duty environments—construction, mining, oilfield—the Severe Series with .190" aluminum provides the extra toughness and lifespan you need. Standard .125" tanks are perfect for general work and personal trucks.

Ready to upgrade? Visit the ATI Fuel Tank Category at CPP Diesel to browse every size, shape, and style. With the largest selection and detailed product pages, CPP Diesel is your #1 source for ATI fuel tanks.