Multiquip 918400800 Engine Assembly 1B40

The Multiquip 918400800 Engine Assembly 1B40 is a genuine OEM Engine Assembly 1B40 designed for the MVH406 and MVH-406DSZ reversible plate compactors. As a direct OEM replacement sourced through authorized Multiquip supply channels, this assembly delivers the correct displacement, output characteristics, and mounting configuration required by these heavy-duty reversible plate machines. Confirm your model code against your machine's serial plate before ordering to ensure an exact application match.

Key Features

• OEM-Matched Power Output — Engineered to the same displacement and torque spec as the original 1B40 engine, ensuring the compactor delivers its rated centrifugal force and travel speed.
• Drop-In Mounting Compatibility — Mounting bolt pattern, PTO shaft dimensions, and throttle linkage connection points match the MVH406 and MVH-406DSZ frame exactly, supporting a straightforward engine swap.
• MVH406 and MVH-406DSZ Fitment — Confirmed for Multiquip MVH-series reversible plate compactors, a family built for demanding asphalt and soil compaction where bidirectional capability is critical.
• Restored Compaction Performance — A worn or seized engine causes loss of plate frequency and compaction depth; replacing with this assembly restores full operating amplitude and surface finish quality.
• Genuine OEM Assurance — Supplied as an authentic Multiquip part, carrying the same quality validation as the unit that left the factory — no substitutions or re-labeled components.

The engine assembly is the prime mover of the reversible plate compactor, converting fuel combustion into rotational force that drives the exciter unit beneath the plate. On MVH-series machines, the engine must sustain consistent RPM under load to maintain the vibratory frequency that achieves proper compaction density in asphalt and granular base material. When an engine loses compression, develops fuel delivery faults, or fails entirely, compaction output drops and the machine becomes inoperable — making a full engine assembly replacement the most reliable path to restoring the compactor to full-duty service.

For fitment questions or help confirming compatibility with your specific MVH406 or MVH-406DSZ unit, contact the DHS Equipment parts 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.