The Multiquip 408420840 Vibrator Pulley is a genuine OEM component designed for the MVC77 single-directional plate compactor. Sourced directly from Multiquip, this pulley is manufactured to the same specification as the original part, ensuring correct belt alignment and drive geometry right out of the box. If you're servicing an MVC77 and need a direct replacement for the vibrator drive system, part number 408420840 is the correct OEM solution.
Key Features
- OEM-Matched Drive Geometry — Manufactured to the original pulley profile, ensuring correct belt wrap, tension, and rotational balance for the MVC77 vibration system.
- Direct Bolt-On Replacement — Matches the original mounting interface on the MVC77 exciter shaft, allowing straightforward installation without modification to belt routing or guard clearances.
- Confirmed MVC77 Fitment — Verified for Multiquip MVC77 plate compactors; use part number 408420840 to confirm compatibility before ordering.
- Sustained Compaction Output — A correctly sized and balanced vibrator pulley maintains consistent eccentric shaft speed, which directly supports the compaction force and frequency the MVC77 is rated to deliver.
- Genuine Multiquip OEM Part — Supplied as an authorized OEM replacement, meaning the material grade and dimensional tolerances match what left the factory — critical for a rotating drive component operating under continuous vibration loads.
The vibrator pulley is a core element of the plate compactor's exciter drive system. It transfers rotational power from the engine via the drive belt to the eccentric shaft, which generates the rapid vibrations that compact soil, gravel, or asphalt beneath the plate. When the pulley wears, cracks, or loses its profile, belt slippage occurs and compaction output drops — often without any obvious external sign until the compacted surface fails inspection. Replacing a worn 408420840 Vibrator Pulley restores the correct drive ratio and keeps the MVC77 delivering consistent, full-force compaction.
Part Details
| Part Number | 408420840 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Vibrator Pulley |
Compatibility & Fitment
| Name | Model |
|---|---|
| Plate Compactors | MVC77 |
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.
