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54 Gallons 15"H x 24"W x 37"L - GMC Style - Rear Fill Milgrade
54 Gallons 15"H x 24"W x 37"L - GMC Style - Rear Fill Milgrade

AlumiTank

54 Gallons 15"H x 24"W x 37"L - GMC Style - Rear Fill Milgrade

Shipping calculated at checkout.
Maximum 10 per order
Make GMC
Width 25
Height 19
Weight 85
Length 37
Warranty

AlumiTank 2-Year Limited Warranty

AlumiTank warrants that every AlumiTank-manufactured product is free from defects in materials and workmanship for two (2) years from the date of purchase, under normal use and service conditions. Coverage applies to the original purchaser only and is non-transferable. A valid proof of purchase (invoice or sales order) must accompany any claim.

If AlumiTank determines a product has a covered defect, we will, at our discretion, repair or replace the product or component. Repaired or replaced items are covered for the remainder of the original warranty period. AlumiTank is not responsible for incidental or consequential damages such as towing costs, lost time, or lost fuel.

What's not covered:

  • Improper installation or mounting, including support straps placed over a tank's internal baffles or over-torqued fasteners
  • Unauthorized modifications – any welding, drilling, cutting, or reshaping without AlumiTank's written approval
  • Misuse, abuse, over-pressurization, overloading beyond rated capacity, or operation beyond product specifications
  • Fuel or chemical incompatibility, including corrosive substances or additives beyond recommended limits
  • Design flaws in products built to a customer-supplied design (workmanship and materials are still covered)
  • Normal wear and tear or cosmetic deterioration – scratches, dents, surface corrosion, finish degradation
  • Accidents, collisions, floods, fires, or other events beyond AlumiTank's control
  • Floor samples, display models, or products sold "as is" or second-hand

How to make a claim:

Email warranty@alumitank.com with the subject "WARRANTY CLAIM – [Name / PO# / Invoice#/Serial#]" before the warranty period expires. Include proof of purchase, photos or video of the defect, and a brief description of how and when it was discovered. If inspection is needed, we'll issue a Sales Return Authorization (SRA) number with return instructions. Customer covers inbound freight; if the defect is covered, AlumiTank repairs or replaces at no cost and covers return shipping.

This warranty is governed by the laws of the State of Illinois. See the full warranty terms here

Returns

All returns require prior authorization.

  • Please contact our team via our contact form or call 800-652-6630
  • Custom tanks are non-returnable unless they are inspected and confirmed to have a defect in workmanship.
  • Standard (non-custom) products may be returned if:
  • The return is initiated within 30 days of delivery.
  • The product is unused, uninstalled, and in original condition.
  • A 15% restocking fee will apply.
  • Return shipping is the customer’s responsibility.
  • Refunds are processed after inspection and issued to the original payment method, excluding applicable fees.

Resources

Measuring a Tank

Full info HERE

Installation

Full info HERE

Tank Maintenance

Full info HERE

Precision Aluminum Fuel Tanks

Made in the USA
Overhead view of a welder working on an aluminum fuel tank component on a workbench in a manufacturing workshop

Built for Exact Fit

Every tank is precision-built to match your truck’s OEM specs, so installation is straightforward — no drilling, guessing, or custom brackets needed.

American-Made Quality

Each AlumiTank is fabricated in the USA from certified 5052 aluminum, TIG-welded for strength, and leak-tested before it leaves the shop.

Close-up of a polished aluminum fuel tank valve cap fitting on a row of finished fuel tanks

Custom Options, Fast Turnaround

Need a specific length, fill neck, or dual-compartment setup? We build to order — usually shipping in days, not weeks.

Direct Replacement or Upgrade

Perfect drop-in replacements for Peterbilt, Kenworth, Freightliner, and more — or upgrade to polished or military-grade finishes for extra durability and style.

Two Alumitank workers collaborating to move and position an aluminum fuel tank component in a manufacturing workshop

Built for Longevity

Our aluminum tanks resist corrosion, weigh less than steel, and handle vibration and weather better than offshore imports.

Support You Can Reach

You’re buying from the fabricators themselves — not a reseller. Real people answer the phone to help with specs, fittings, or replacements.