The Wacker Neuson M8 Flat Washer Zinc Black Plate is a genuine OEM hardware component designed for RD12 and RD16 series tandem vibratory rollers. Sourced directly from Wacker Neuson, this washer meets the exact dimensional and finish specifications called out in the original assembly. It is confirmed to fit the RD12-90, RD12A-90, RD16-90, and RD16-100 models across multiple configurations, including standard, foldable ROPS, and hydrostatic variants. When replacing worn or missing fastener hardware on your roller, using the correct OEM part like the ensures proper clamp load and corrosion resistance are maintained throughout the assembly.
Key Features
- Zinc Black Plate Finish: — The black zinc plating provides corrosion resistance in outdoor and wet compaction environments, helping the washer hold up against the moisture and debris exposure typical on asphalt and soil roller applications.
- Correct M8 Sizing: — Dimensioned to M8 specification, this washer seats flush against mating fastener hardware without shimming or substitution, maintaining proper torque transfer in the fastened joint.
- Genuine Wacker Neuson OEM Part: — Manufactured to the same standard as the original hardware supplied with the machine, ensuring consistent material grade and dimensional accuracy across every replacement.
- Broad RD-Series Compatibility: — 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.
- Fastener System Integrity: — A correctly sized and finished washer distributes clamping force evenly across the joint surface. A missing or undersized washer can allow fastener loosening under the vibration loads that tandem rollers generate during compaction passes.
A flat washer serves as a load-distributing interface between a fastener head or nut and the surface it bears against. By spreading the clamping force over a wider area, it prevents the fastener from pulling through or distorting softer material, and it reduces the risk of the fastener backing off under vibration. On tandem vibratory rollers like the RD12 and RD16 series, which operate under continuous high-frequency vibration during asphalt and soil compaction, maintaining correct fastener hardware throughout the machine is essential to keeping assemblies tight and aligned. When a washer is missing, corroded, or the wrong size, fasteners can lose preload and allow joints to shift, which can accelerate wear on the components those fasteners hold in place.
Part Details
| Part Number | 5000163953 |
|---|---|
| Old Part Number | 0163953 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | M8 Flat Washer Zinc Black Plate |
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.
