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SKU:AUX42R

ATI 42 Gallon Auxiliary Diesel Fuel Tank

ATI 42 Gallon Auxiliary Diesel Fuel Tank

Regular price $819.99
Regular price $969.99 Sale price $819.99
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Features

DOT Compliant: Meets and exceeds Title 49 CFR 393.65 standards for auxiliary diesel fuel tanks.

Extended Capacity: 42-gallon auxiliary tank increases driving range without excessive bed intrusion.

Durable Construction: Built from 0.125 in. thick bright aluminum treadplate with fully welded seams and internal baffles to reduce fuel slosh.

Gravity Feed Design: Transfers fuel via gravity—no pump or electrical components required.

Proper Venting: Vented fitting supports consistent and unrestricted gravity flow.

Drain / Feed Port: 3/8 in. NPT drain fitting doubles as the gravity feed outlet.

Secure Filler Cap: Automotive-style diesel filler cap provides dependable access.

Quality Tested: Each tank is visually inspected and pressure tested to ensure leak-free performance.

Clean and Ready: Cleaned inside and out prior to shipping.

Stable Mounting: Integrated mounting tabs allow secure truck bed installation.

American Made: Manufactured in the USA using high-quality materials and fittings.

Warranty Backed: Covered by ATI’s 1-year manufacturer’s warranty.

Diesel Specific: Designed exclusively for auxiliary diesel fuel use.

Specs

Item Number: AUX42R

Brand: ATI

Manufacturer’s Warranty: 1 Year

Capacity: 42 Gallons

Shape: Rectangular

Material: Aluminum

Finish: Bright Aluminum (Black Powder Coat Optional)

Internal Baffles: Yes

Drain / Feed Fitting: 3/8 in. NPT

Vent: Gravity vented

Mounting Tabs: Integrated

Mounting Hardware Included: No

DOT Approved: Yes

Compatible With: Diesel Fuel Only

Country of Origin: USA

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Product Description

The ATI 42 Gallon Auxiliary Diesel Fuel Tank is a balanced extended-range solution designed to add diesel fuel capacity while maintaining practical truck bed space. This auxiliary tank connects to the factory fuel system using a Gravity Feed Installation Kit (sold separately), allowing diesel fuel to transfer naturally into the primary tank without the use of a pump.

Constructed from premium aluminum, the tank is DOT approved for highway and commercial use, meeting and exceeding Title 49 CFR 393.65 requirements. Purpose-built for auxiliary diesel fuel applications, ATI tanks deliver reliable, American-made performance for work trucks, fleet vehicles, and long-distance operators.