The Wacker Neuson Stud M8 X 20 8.8 is a genuine OEM fastener designed for the RD7H, RD 7ES, and RD 7S series double drum vibratory rollers. As a factory-sourced component, this stud is manufactured to the same dimensional and tensile specifications as the original part, ensuring correct thread engagement and clamping force in its intended application. It is a direct replacement for worn or damaged hardware across all listed RD7H variants, including the RD7H-ES, RD7H-S, and their EU-spec counterparts.
Key Features
- Grade 8.8 Tensile Strength — Manufactured to the 8.8 property class standard, delivering the correct yield strength and torque capacity required for structural fastening on vibratory roller assemblies.
- Exact OEM Thread Specification — M8 x 20 dimensions match the original stud precisely, allowing straightforward installation into existing threaded bores without recutting or modification.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, this stud carries the part number 5000202426 and meets the same production standards as the hardware installed at the factory.
- Broad RD7H Series Coverage — Fits the RD7H, RD7H-ES, RD7H-S, RD 7ES, and RD 7S double drum vibratory rollers, covering both standard and EU-specification machines.
- Prevents Joint Failure — A correctly rated stud maintains consistent clamping load across critical connections; an under-spec or worn stud can allow joint movement, vibration loosening, or fastener failure under compaction loads.
A stud is a headless threaded fastener that threads permanently into a tapped bore on one end, with the exposed thread accepting a nut on the opposite end. On vibratory roller equipment, studs are used at high-load connection points where repeated assembly and disassembly would wear out a standard bolt thread in the base material. When a stud stretches, strips, or corrodes, it compromises the clamping force of the joint, which can lead to loosening, misalignment, or component damage during operation. Replacing a failed stud with the correct grade and dimension restores the joint to its designed holding capacity.
Part Details
| Part Number | 5000202426 |
|---|---|
| Old Part Number | 0202426 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Stud M8 X 20 8.8 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| RD 7S | RD7H-S EU | 5000620795 |
| Double Drum Vibratory Roller | RD7H | 5000008042 |
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.
