Multiquip EE51188 Generator Marathon UL 90kw 125C 480V

The Multiquip EE51188 Generator Marathon UL 90kw 125C 480V is a genuine OEM component designed for the PM300 concrete pump. As a direct OEM replacement, this generator assembly meets the exact electrical and mechanical specifications required by the PM300, ensuring the machine delivers the power output it was engineered to produce. If you're servicing or rebuilding a PM300 unit, this is the correct Multiquip part for the job.

Key Features

• OEM-Matched Electrical Specification — Rated at 90kw output at 480V, this generator meets the precise voltage and power ratings required by the PM300, eliminating the risk of under- or over-powered operation.
• Marathon Generator Assembly — Built to Marathon's commercial-grade standards with UL listing, providing the durability and compliance expected in demanding concrete pump applications.
• 125C Insulation Class Rating — The Class B thermal insulation rating supports sustained operation under load without heat-related degradation, extending service intervals in continuous-use environments.
• Direct Replacement for PM300 — Engineered to drop into the PM300 concrete pump without modification, matching the mechanical mounting and electrical interface of the original unit.
• UL Listed for Compliance — UL certification is relevant for worksites and jurisdictions where electrical component compliance is required, helping keep your equipment operation above board.

The generator on a concrete pump like the PM300 is responsible for supplying the electrical power that drives the machine's hydraulic and control systems. A properly functioning generator ensures stable, consistent power delivery so the pump operates at its intended output capacity. When a generator degrades or fails, the machine may experience erratic performance, reduced output, or a complete loss of function — making correct replacement critical to restoring full operation.

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.