The Wacker Neuson Spring Washer is a genuine OEM component designed for the PT2A, PT3A, and PT4A series self-priming centrifugal trash pumps, including international variants. As a factory-sourced part, the meets the original design tolerances and material specifications required to maintain proper fastener tension and joint integrity in these pumps. This spring washer fits across the PT2A, PT2A(I), PT3A, PT3A(I), PT4A, and PT4A(I) pump configurations, making it a versatile service item to keep on hand for PT-series maintenance. Order the with confidence — genuine Wacker Neuson parts carry the full backing of the manufacturer.
Key Features
- Correct Tension Rating for Pump Assemblies — Engineered to deliver the precise spring force needed to maintain secure fastener load in PT-series pump hardware, preventing loosening under vibration and operation.
- Genuine OEM Part — Sourced directly from Wacker Neuson, this spring washer matches the original material grade and dimensional spec of the component it replaces.
- Broad PT-Series Compatibility — Fits PT2A, PT2A(I), PT3A, PT3A(I), PT4A, and PT4A(I) self-priming centrifugal trash pumps across standard and international configurations.
- Drop-In Replacement — Dimensionally identical to the original, this washer installs without rework or modification to surrounding hardware.
- Supports Pump Integrity During Heavy-Duty Use — A worn or fatigued spring washer can allow fasteners to back out during pump operation, leading to fluid leaks or component misalignment. Replacing it promptly keeps the pump sealed and running as intended.
A spring washer is a hardened, curved or coiled washer placed under a fastener to apply continuous axial load and resist loosening caused by vibration. In a trash pump like the PT-series, where the engine and pump housing are subject to constant operational vibration and pressure cycles, spring washers play a critical role in keeping assemblies tight and leak-free. When a spring washer loses its tension — through fatigue, corrosion, or over-compression — the fastener it supports can work loose, potentially causing fluid leaks, misalignment, or more serious mechanical failure.
Part Details
| Part Number | 5100050896 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Spring Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT2A | PT2A | 5100042215 |
| PT3A | PT3A | 5100042216 |
| PT4A | PT4A | 5100042217, 5100042604 |
| PT2A(I) | PT2A(I) | 5100042613 |
| PT3A(I) | PT3A(I) | 5100042614 |
| PT4A(I) | PT4A(I) | 5100042615 |
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.
