The Wacker Neuson Retaining Ring is a genuine OEM retaining ring designed for the DPU6555, DPU5545, DPU4545, and RD7H series reversible vibratory plates. As a direct-from-manufacturer component, this retaining ring is produced to the same specifications as the part originally installed at the factory, ensuring it seats and locks exactly as intended. Compatible across a wide range of DPU and RD7H configurations including Heh, Hec, Heap, and Hesh variants, this is the correct part for operators looking to restore their machine to proper working order. Keep part number on hand for planned maintenance or as a fast-turnaround repair part when the original shows wear.
Key Features
- Genuine OEM Retention Integrity — Manufactured by Wacker Neuson to the exact dimensional tolerances required for secure snap-fit engagement — no guesswork on ring tension or groove clearance.
- Drop-In Installation — Matches the original groove diameter and ring profile, so it installs directly into the existing groove without reworking or adapting the surrounding hardware.
- Broad DPU and RD7H Compatibility — Fits DPU6555, DPU5545, and DPU4545 series in multiple configurations, as well as RD7H, RD7Hf, and RD7Hfb reversible plates — one part number covers the range.
- Keeps Critical Components Seated — A retaining ring that has fatigued or sprung free allows shafts, bearings, or rotating assemblies to shift axially, leading to accelerated wear and potential damage to adjoining parts.
- Genuine Part Traceability — Sourced directly through the Wacker Neuson parts network, so the part number, revision level, and material grade match the current OEM specification for your machine.
A retaining ring is a small but load-bearing fastener that clips into a machined groove on a shaft or inside a bore to lock a component axially in place — preventing it from sliding or separating under vibration and operating loads. On high-frequency vibratory plate compactors like the DPU and RD7H series, this function is especially demanding because the entire machine is engineered around sustained, high-amplitude vibration. When a retaining ring cracks, flattens, or loses its spring tension, the assembly it secures can shift, create play, or work loose entirely, causing progressive damage to bearings, housings, and drive components. Replacing a worn retaining ring promptly is one of the lowest-cost interventions available to prevent a much larger repair.
Part Details
| Part Number | 5100051915 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Retaining Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| DPU6555Heh | DPU6555Heh | 5100009636 |
| DPU6555Hehap | DPU6555Hehap | 5100009638 |
| DPU6555 Hech | DPU6555 Hech | 5100009639 |
| DPU5545Heh | DPU5545Heh | 5100009652 |
| DPU5545Hehap | DPU5545Hehap | 5100009654 |
| DPU5545Hech | DPU5545Hech | 5100009655, 5100051523 |
| DPU4545Heh | DPU4545Heh | 5100009659 |
| DPU6555Hesh | DPU6555Hesh | 5100015774 |
| DPU6555Hecsh | DPU6555Hecsh | 5100015775 |
| DPU6555He | DPU6555He | 5100016940 |
| DPU6555Hes | DPU6555Hes | 5100016941 |
| DPU6555Heap | DPU6555Heap | 5100016943 |
| DPU6555Hec | DPU6555Hec | 5100016944 |
| DPU6555Hecs | DPU6555Hecs | 5100016945 |
| DPU 6555H | DPU 6555H | 5100009651 |
| DPU4545Hech | DPU4545Hech | 5100015429, 5100051522 |
| DPU 6555Hs | DPU 6555Hs | 5100015773 |
| DPU5545He | DPU5545He | 5100016947 |
| DPU5545Heap | DPU5545Heap | 5100016949 |
| DPU5545Hec | DPU5545Hec | 5100016950 |
| DPU4545He | DPU4545He | 5100016951 |
| DPU4545Hec | DPU4545Hec | 5100016953 |
| DPU6555Hechzf | DPU6555Hechzf | 5100021400 |
| DPU4545Hechzf | DPU4545Hechzf | 5100022112 |
| DPU6555Hech | DPU6555Hech | 5100051524 |
| RD7H | RD7H | 5100006333 |
| RD7Hf | RD7Hf | 5100006338 |
| RD7Hfb | RD7Hfb | 5100006343 |
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.
