The Wacker Neuson Ext Retaining Ring 19mm x 1.2mm is a genuine OEM component designed for GPS9700, GPS8500, GS8.5V, GS9.7V, and GS12Ai series portable generators. Sourced directly through Wacker Neuson's authorized parts supply chain, this retaining ring meets the exact dimensional and material specifications called for in the original build. It is a direct-fit replacement for the 19mm shaft position it secures, requiring no reworking of surrounding components. If you're servicing one of the covered generator models, part number is the correct OEM choice to restore your machine to proper working order.
Key Features
- OEM-Spec Dimensional Accuracy — Manufactured to the precise 19mm diameter and 1.2mm groove width called out in Wacker Neuson's original design, ensuring the ring seats and retains correctly without play or deformation.
- Drop-In Installation — Snaps directly into the existing external groove on the shaft, matching the same engagement depth and spring tension as the original part.
- Broad Generator Series Coverage — Compatible with multiple Wacker Neuson portable generator lines including the GPS9700, GPS8500, GS8.5V, GS9.7V, and GS12Ai, spanning both 50Hz and 60Hz configurations.
- Shaft Retention Integrity — Keeps critical rotating or sliding shaft components locked in axial position; a worn or missing retaining ring can allow components to shift, leading to accelerated wear or mechanical failure.
- Genuine Wacker Neuson OEM Part — Supplied as an authorized OEM replacement, so you get the same hardened spring steel construction and clip geometry used in original production.
An external retaining ring — sometimes called a snap ring — is a precision-formed fastener that fits into a machined groove on the outside of a shaft to prevent axial movement of mounted components such as bearings, gears, or pulleys. In a portable generator, these rings hold drivetrain and rotor-side components in exact alignment; if the ring loses its spring tension, cracks, or pops free, the retained component can shift or separate, causing noise, vibration, or a complete mechanical failure. Replacing a worn or damaged retaining ring with the correct OEM part restores the designed axial constraint and protects the surrounding assembly from unnecessary wear.
Part Details
| Part Number | 5002004777 |
|---|---|
| Old Part Number | 2004777 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Ext Retaining Ring 19mm x 1.2mm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator with Electr ic Start | GPS9700 | 5000008287, 5000620264, 5200005042, 5000620973, 5100036768 |
| Portable Generator with Electr ic Start | GPS8500 | 5000008286 |
| Portable Generator with Electr ic Start | GS8.5V | 5000007661 |
| Portable Generator with Electr ic Start | GS9.7V | 5000007662 |
| 50Hz Portable Generator 12 kVA | GS12Ai | 5000009108 |
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.
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