Multiquip 7875 Engine Assembly HTN 31HP Vanguard

The Multiquip 7875 Engine Assembly HTN 31HP Vanguard is a genuine OEM engine assembly designed for Multiquip gasoline-powered arc welder and generator models including GA6HR, GA6HRS, GA6HRSNC2, GAC6HRS, GAC6HR, GA2.5HR, GAC2.5HR, GAC3.6HR, GA3.6HR, GA3.6HA, GA6HEB, GA6HB, GAC2.2HZ, GA3.6HZ, and GA6HZ. As a direct OEM replacement sourced through Multiquip's authorized parts network, part 7875 is built to the same specification as the original engine unit it replaces. This assembly is a complete engine unit, making it the correct choice when the existing engine requires full replacement rather than component-level repair. Verify your model code against the fitment list before ordering to confirm compatibility.

Key Features

• Genuine OEM Engine Build Quality — Manufactured to the same power output and mechanical tolerances as the original 31HP Vanguard engine installed at the factory, ensuring consistent performance across the supported generator and welder models.
• Complete Engine Assembly — Supplied as a fully assembled unit, allowing direct swap-in without sourcing individual sub-components or performing bench assembly prior to installation.
• Broad Generator and Arc Welder Fitment — Confirmed fit across GA6HR, GAC6HRS, GA3.6HR, GA3.6HA, GA6HEB, GAC2.2HZ, GA6HZ, and related GA-series gasoline-powered equipment.
• Sustained Power Output — A correctly functioning engine assembly maintains the rated output needed to drive the alternator or welder head at full load; a worn or failed engine results in voltage drop, arc instability, or complete loss of output.
• Authorized Multiquip OEM Part — Part number 7875 is a genuine Multiquip component sold through DHS Equipment, ensuring you receive the correct part with full traceability back to the original equipment specification.

The engine assembly is the core power source of a gasoline-powered generator or arc welder, converting fuel into the rotational energy that drives the alternator or welding head. Without a properly functioning engine, the unit cannot produce electrical output or maintain a stable welding arc. When an engine reaches the end of its service life — through excessive wear, mechanical failure, or damage — replacing the complete assembly with a genuine OEM unit like the Multiquip 7875 restores the machine to its original operating capability and rated output.

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.