The Wacker Neuson Tooth Lock Washer is a genuine OEM component designed for the RD7H-ES, RD7He, and RD7H series tandem rollers. Sourced directly from Wacker Neuson, this part meets the exact manufacturing standards of the original hardware used on the production line. It is a direct drop-in replacement that fits across multiple RD7 series configurations, including walk-behind roller variants produced under North American specifications. Confirm your model number against the fitment list to ensure this is the correct washer for your machine.
Key Features
- Serrated Tooth Retention: — The toothed profile bites into mating surfaces to resist loosening under vibration — critical on compaction equipment where constant oscillation can back out standard fasteners.
- Genuine OEM Hardware Grade: — Manufactured to the same material hardness and tooth geometry as the original production washer, ensuring consistent clamp load and locking performance.
- Direct Drop-In Installation: — Matches the original bore diameter and outer profile exactly, seating onto the fastener stack without reworking or shimming.
- Broad RD7 Series Coverage: — Compatible with RD7H-ES, RD7He, and RD7H tandem rollers across a wide range of serial-number-specific builds, including EU and North American configurations.
- Protects Fastener Integrity: — A failed or flattened lock washer allows fasteners to gradually loosen, leading to misalignment or component damage. Replacing it promptly keeps critical assemblies securely torqued.
A tooth lock washer is a hardened fastener component placed beneath a bolt head or nut to prevent the fastener from backing out due to vibration or dynamic loading. The serrated teeth dig into the bearing surface of both the fastener and the mating part, creating mechanical resistance that a plain washer cannot provide. On compaction equipment like tandem rollers, where the machine's entire purpose is to generate and transmit vibration, maintaining proper fastener torque depends on the locking washer doing its job — a worn or deformed washer compromises that hold and can allow critical assemblies to shift or come loose during operation.
Part Details
| Part Number | 5000203140 |
|---|---|
| Old Part Number | 0203140 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tooth Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| RD7 Tandem Roller | RD7H | 5100017195, 5100017338, 5200015242, 5200015245 |
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.
