Multiquip EE51212 Sub-Base Double Wall Tank UL142 150 Gallon

The Multiquip EE51212 is a genuine OEM Sub-Base Double Wall Tank rated to UL142 standards with a 150-gallon capacity, designed for UL142-compliant generator base fuel systems. As a direct OEM replacement, EE51212 meets the same design and material specifications as the original unit, ensuring a correct installation with no guesswork on compatibility. This tank is confirmed for UL142 series equipment and is sourced directly through authorized Multiquip distribution channels at DHS Equipment.

Key Features

• Double-Wall UL142-Rated Construction — Built to Underwriters Laboratories UL142 standard for aboveground flammable liquid storage, delivering the containment integrity required for fuel sub-base applications.
• 150-Gallon Fuel Capacity — Provides substantial on-board fuel storage to support extended generator run times without frequent refueling interruptions.
• Direct OEM Replacement — Engineered to the same dimensions and connection points as the original Multiquip sub-base tank, allowing a straightforward swap into UL142 series generator configurations.
• Genuine Multiquip OEM Part — Sourced through authorized Multiquip supply channels, this part carries the same material and structural specifications as what shipped on the original equipment.
• Secondary Containment Design — The double-wall construction provides a built-in secondary containment layer, helping facilities meet environmental compliance requirements for fuel storage installations.

A sub-base double-wall fuel tank serves as the structural foundation of a stationary generator while simultaneously housing the unit's primary fuel supply within a secondary containment shell. The inner tank holds the diesel or fuel supply, while the outer wall acts as a containment barrier, capturing any leaks or seepage before they can reach the surrounding environment — a requirement enforced by UL142 certification for aboveground steel fuel tank systems. When this tank is compromised through corrosion, physical damage, or weld failure, it can create fuel containment violations and interrupt generator operation entirely, making timely replacement with a correct OEM part essential.

For fitment questions or order support, contact the DHS Equipment team directly.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.