The Wacker Neuson is a genuine OEM #6 SAE Hollow Hex Zero Lock Plug designed for the RD12 and RD12A series tandem rollers, including standard solid ROPS and foldable ROPS configurations. As a factory-sourced component, delivers an exact dimensional and thread match to the original part, ensuring a leak-free seal in the hydraulic circuit where it is installed. This plug is confirmed to fit multiple RD12 and RD12A machine configurations, making it a straightforward service replacement for roller operators and dealer technicians alike.
Key Features
- Genuine OEM Thread and Dimensional Accuracy — Manufactured to Wacker Neuson's original specifications, this plug meets the exact thread form and seating geometry required for a zero-leak hydraulic port closure.
- Zero Lock Design for Secure Retention — The zero lock feature resists loosening under vibration and pressure cycling, which is critical on walk-behind tandem rollers operating on compacted asphalt and soil.
- SAE #6 Hollow Hex Configuration — Sized and threaded to SAE #6 standard with a hollow hex drive, allowing installation and removal with a standard hex key in tight hydraulic manifold or port locations.
- Fits RD12 and RD12A Tandem Roller Families — Confirmed fitment across RD12-90 and RD12A-90 variants, covering solid ROPS and foldable ROPS machine builds.
- Hydraulic System Integrity — A correctly seated plug keeps hydraulic pressure stable and prevents fluid loss; a failed or missing plug can cause immediate system pressure drop and roller shutdown.
A hydraulic port plug seals off unused or capped hydraulic ports within the machine's hydraulic circuit, preventing fluid escape and maintaining system pressure. On tandem rollers like the RD12 and RD12A, maintaining a closed, pressurized hydraulic circuit is essential for consistent drum drive performance and steering response. If this plug is missing, damaged, or cross-threaded, hydraulic fluid loss can occur rapidly, leading to loss of drive function and potential system contamination.
Part Details
| Part Number | 5000165393 |
|---|---|
| Old Part Number | 0165393 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | #6 SAE Hollow Hex Zero Lock Plug |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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.
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