Multiquip 452990 Extension Plates 3" (Set)

The Multiquip 452990 Extension Plates 3" (Set) is a genuine OEM component designed for the MVH308, MVH408, and MVH508 series reversible plate compactors. This set delivers the precise geometry and material strength required to extend the compaction width on Multiquip MVH heavy-duty reversible plates, ensuring consistent soil contact across the full working surface. Genuine OEM engineering means the 452990 mounts to your machine's existing plate frame with no guesswork — correct hole spacing, correct plate thickness, correct fit. Compatible models include the MVH308GH, MVH308DE, MVH308DZ, MVH408GH, MVH408GV, MVH408DE, MVH408DZ, MVH508GH, MVH508GV, MVH508DE, and MVH508DZ.

Key Features

• Genuine OEM Construction: — Manufactured to Multiquip's original material and dimensional specs, so plate-to-frame contact and compaction force transfer remain exactly as engineered.
• Direct Bolt-On Fitment: — Mounting holes align to the existing MVH plate frame, so installation follows the original attachment pattern without drilling or modification.
• Broad MVH Series Compatibility: — Fits eleven MVH models across the 308, 408, and 508 weight classes, covering diesel and gasoline variants including DE, DZ, GH, and GV configurations.
• Wider Coverage Per Pass: — Adding 3 inches of extension on each side increases the effective compaction width, letting operators cover more ground per pass on compaction runs.
• Maintains Compaction Uniformity: — Properly fitted extension plates keep the compaction footprint even across the full plate width, preventing soft spots or uneven density at the edges of a compacted area.

Extension plates bolt onto the outer edges of a reversible plate compactor's base plate to increase its effective working width. On heavy-duty reversible compactors like the MVH series, this added width means each forward or reverse pass covers a wider strip of material — useful when compacting wide trench backfill, subbase layers, or open areas where maximizing coverage matters. When extension plates are worn, cracked, or missing, the working width of the machine is reduced and edge compaction becomes inconsistent, which can compromise subgrade density and require additional passes to meet spec.

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.