The Wacker Neuson is a genuine OEM Hex Plug, Black Nylon 1/4 NPT designed for RD12 and RD16 series tandem vibratory rollers. Sourced directly from Wacker Neuson, this plug is manufactured to the same standards as the original component installed at the factory. Compatible models include the RD12-90, RD12A-90, RD16-90, and RD16-100 tandem rollers across multiple configurations including solid ROPS, foldable ROPS, and hydrostatic variants. Verifying your machine's model and serial number against part number before ordering ensures a direct, hassle-free installation.
Key Features
- Genuine OEM Material Grade — Black nylon construction delivers the correct chemical resistance and thread engagement for hydraulic or fluid system port sealing on tandem roller applications.
- 1/4 NPT Thread Spec — Machined to standard 1/4 NPT taper thread dimensions, allowing the plug to seat and seal correctly in the designated port without rework or adaptation.
- Broad RD-Series Fitment — Fits RD12-90, RD12A-90, RD16-90, and RD16-100 tandem rollers, covering both solid ROPS and foldable ROPS configurations as well as hydrostatic drive variants.
- Port Integrity Protection — A properly seated hex plug prevents fluid contamination ingress and pressure loss at unused or capped ports, maintaining correct system operation across the roller's hydraulic circuit.
- Direct OEM Replacement — As a genuine Wacker Neuson part, 5000177405 matches the original plug removed from the machine, eliminating guesswork on thread form, material, and hex drive size.
A hex plug is a threaded fastener used to cap and seal an open port in a hydraulic, fluid, or pneumatic system. On tandem vibratory rollers such as the RD12 and RD16 series, unused or service ports in the hydraulic circuit are sealed with plugs like this one to maintain system pressure and prevent contamination. When a plug becomes cracked, cross-threaded, or lost during service, the exposed port can allow fluid to leak or debris to enter the circuit, leading to pressure loss or component damage. Replacing a damaged or missing plug promptly keeps the hydraulic system fully sealed and operating as intended.
Part Details
| Part Number | 5000177405 |
|---|---|
| Old Part Number | 0177405 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hex Plug, Black Nylon 1/4 NPT |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD16-90 Vibratory Roller | RD16-90 | 5000620060, 5000620127, 5000620799 |
| RD 16-100 | RD16-100 | 5000620402, 5000620798 |
| RD12A-90 ROLLER,DBL DRUM,GRN | RD12A-90 | 5000620369, 5000620058, 5000620320 |
| RD12-90 ROLLER, DOUBLE DRUM, SOLID ROPS | RD12-90 | 5000620059, 5000620321 |
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.
