The Wacker Neuson 5000021988 is a genuine OEM Lock Washer designed for the AP-series battery-powered vibratory plate compactors and DPS-series reversible vibratory plate compactors, including the AP1840e, AP1840we, AP1850e, AP1850we, AP2560E, DPS 1850H, DPS 1850Y, DPS 3050, DPS 3060, and DPS 3060Hv. Sourced directly from Wacker Neuson, this part meets the exact material and dimensional specifications of the original component installed at the factory. Correct fastener hardware like the 5000021988 is critical to maintaining secure assembly integrity across the compactor's drive and structural components. If you're restoring a machine or completing a service interval, using the correct OEM hardware ensures the assembly performs as intended.
Key Features
- OEM Material Specification — Manufactured to Wacker Neuson's exact hardness and spring-tension ratings, ensuring the washer provides the correct clamping force for fastener retention in vibration-intensive compaction applications.
- Direct-Fit Replacement — Matches the original bore diameter and outer profile for drop-in installation without sizing adjustments or shimming.
- Broad AP and DPS Series Compatibility — Confirmed fitment across multiple AP-series battery-powered vibratory plates and DPS-series reversible plate compactors, covering a wide range of Wacker Neuson compaction equipment.
- Vibration Resistance — Lock washers in high-frequency vibratory equipment are subject to constant cyclic loading; a worn or incorrect washer allows fastener loosening that can lead to component misalignment or structural failure during operation.
- Genuine OEM Assurance — Supplied as a genuine Wacker Neuson part under part number 5000021988, so you're installing the same hardware used in original production — no guesswork on compatibility.
A lock washer is a hardened fastener component placed beneath a bolt or nut to resist loosening under vibration, torque, and dynamic loads. In vibratory plate compactors — machines that generate continuous high-frequency oscillation — standard fasteners are highly susceptible to backing out over time, making lock washers a critical part of any secure assembly. When a lock washer is missing, worn flat, or incorrectly sized, fasteners can work loose during operation, causing component shift, accelerated wear, and potential mechanical failure. Replacing worn or damaged lock washers with the correct OEM part restores the intended clamping security and helps the machine maintain proper assembly torque throughout its service life.
Part Details
| Part Number | 0021988 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| AP1840e | AP1840e | 5100042939 |
| AP1840we | AP1840we | 5100042938 |
| AP1850e | AP1850e | 5100038319 |
| AP1850we | AP1850we | 5100038311 |
| AP2560E | AP2560E | 5100048488 |
| DPS 1850H | DPS 1850H | 0008397, 0008750 |
| DPS1850H ASPHALT | DPS1850H ASPHALT | 5000610033 |
| DPS 1850H Asphalt | DPS 1850H Asphalt | 0008925 |
| DPS1850H BASIC | DPS1850H BASIC | 5000610032 |
| DPS 1850H Basic | DPS 1850H Basic | 0008924 |
| DPS 1850H Vario | DPS 1850H Vario | 0008926 |
| DPS1850H VARIO | DPS1850H VARIO | 5000610034 |
| DPS 1850Y | DPS 1850Y | 0007780 |
| DPS 3050 | DPS 3050 | 0006962 |
| DPS 3060 | DPS 3060 | 0006963 |
| DPS 3060Hv | DPS 3060Hv | 5100016643 |
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.
