Wacker Neuson 5002004822 Retaining Ring

The Wacker Neuson Retaining Ring is a genuine OEM component designed for BPU and DPU series reversible vibratory plate compactors, including the BPU 3545A, BPU 5045A, BPU 5545A, DPU 4045, DPU 4545, DPU 5045, DPU 5545, DPU 6055, and DPU 6555 series machines. As a factory-sourced part, is manufactured to the exact tolerances required to maintain proper shaft or component retention within the compactor drivetrain. This retaining ring is a direct-fit replacement that installs into its designated groove without modification, restoring the mechanical integrity of the assembly it secures. Whether you are performing scheduled maintenance or replacing a worn or damaged ring, this is the correct OEM part for the job.

Key Features

• Genuine OEM Retention Tolerancing — Manufactured to Wacker Neuson's exact groove-fit specification, ensuring the ring seats fully and holds its rated load without creep or displacement.
• Direct Groove-Fit Installation — Engineered to snap into the designated groove on the shaft or bore, requiring no machining or sizing adjustments during installation.
• Broad BPU and DPU Series Coverage — Confirmed fitment across gasoline-powered BPU models (3545A, 4045A, 5045A, 5545A) and diesel-powered DPU models (4045, 4545, 5045, 5545, 6055, 6555), covering a wide range of reversible plate compactor configurations.
• Drivetrain Component Security — A correctly seated retaining ring prevents axial movement of shafts, bearings, and related components; a failed or missing ring can cause accelerated wear, misalignment, or complete drivetrain failure during compaction operations.
• Factory Part Number Verified — Sourced directly under OEM part number 5002004822, eliminating the guesswork of cross-referencing or substituting from incompatible part families.

A retaining ring is a precision fastener that locks into a machined groove on a shaft or inside a bore to prevent lateral or axial movement of the components it retains — typically bearings, gears, or rotating assemblies. In reversible vibratory plate compactors like the BPU and DPU series, these rings play a critical role in keeping drivetrain and exciter components properly positioned under the constant high-frequency vibration loads these machines generate. When a retaining ring becomes worn, deformed, or dislodged, the assembly it secures loses its positional constraint, which can lead to accelerated bearing wear, internal component contact, and ultimately costly drivetrain damage if not addressed promptly.

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.