Multiquip EE30780 Sub-Base Double Wall Tank UL142 12Hr 100 G

The Multiquip EE30780 is a genuine OEM Sub-Base Double Wall Tank designed for UL142 series equipment, providing a 12-hour, 100-gallon fuel storage capacity directly beneath the generator set. As a factory-original component, this tank is manufactured to meet the same specifications as the unit it replaces, ensuring a correct, confidence-inspiring installation. Verified for UL142 series compatibility, the part is the right choice for operators who need an exact-match fuel tank solution sourced directly through an authorized Multiquip parts channel.

Key Features

• Double-Wall Construction — Secondary containment built into the tank design helps prevent fuel leaks and supports environmental compliance requirements at fuel-storage installations.
• UL142 Listed Design — Manufactured to satisfy UL142 aboveground flammable liquid tank standards, meeting the safety and listing requirements commonly mandated for generator base tank applications.
• 100-Gallon, 12-Hour Fuel Capacity — Sized to support extended runtime operation without refueling interruptions, critical for standby and continuous-duty generator applications.
• Genuine OEM Component — Produced to Multiquip's original engineering specifications, delivering the same material grade, seam integrity, and fitting placement as the original tank.
• Direct Sub-Base Fitment — Engineered as a drop-in base tank for UL142 series generator sets, with mounting geometry and connection points matching the original sub-base configuration.

A sub-base double wall fuel tank sits directly beneath a generator set and serves as both the structural base and the primary fuel reservoir for the unit. The double-wall design encloses an inner fuel tank within an outer containment shell, so any leak from the inner tank is captured before it can reach the ground — a requirement on many commercial and industrial job sites. When a sub-base tank degrades, develops seam failures, or no longer meets listing requirements, replacing it with a genuine OEM part such as the part ensures the generator's fuel supply, structural support, and containment compliance are all restored to their original standard.

For fitment questions or to confirm compatibility with your specific UL142 configuration, contact the DHS Equipment parts team for assistance.

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.