Multiquip EE54369 Sub-Base Double Wall UL142 24HR Tank

The Multiquip EE54369 Sub-Base Double Wall UL142 24HR Tank is a genuine OEM component designed for UL142 series generator and equipment installations requiring compliant sub-base fuel storage. This is a direct OEM replacement sourced from Multiquip, ensuring the tank meets the same construction standards as the original unit. Built to UL142 specification, this sub-base tank is engineered for equipment requiring a 24-hour runtime fuel capacity with double-wall containment. Confirm your model code against the UL142 series before ordering to ensure correct fitment.

Key Features

• UL142 Double-Wall Construction — Secondary containment wall meets UL142 listing requirements, providing the structural integrity and leak protection demanded by code-compliant fuel storage installations.
• 24-Hour Runtime Capacity — Tank volume is sized to support continuous 24-hour operation, keeping generator sets and associated equipment running through extended duty cycles without manual refueling.
• Genuine OEM Component — Supplied directly through Multiquip's parts program, this tank matches the original sub-base configuration for proper mounting, connection point alignment, and dimensional fit on UL142 series equipment.
• Direct Sub-Base Integration — Designed to mount beneath the generator set as a structural sub-base, combining fuel storage and equipment support in a single assembly without additional adapter hardware.
• Regulatory Compliance Support — Double-wall design supports compliance with local fire codes and EPA secondary containment requirements commonly enforced on stationary generator fuel systems — critical for permitted installations.

A sub-base fuel tank serves a dual purpose on stationary generator installations: it acts as the structural base that supports the generator set while simultaneously storing the onsite fuel supply. The double-wall design means a secondary outer wall surrounds the primary fuel-holding inner tank, containing any leaks or seepage before they reach the ground — a requirement on many commercial, industrial, and government job sites. When a sub-base tank is compromised through corrosion, physical damage, or weld failure, it can create fuel leaks, regulatory violations, and generator downtime; replacing it with a correct OEM unit restores both structural support and containment integrity.

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.