The Wacker Neuson Flat Washer is a genuine OEM component designed for the PT2A, PT3A, and PT4A series self-priming centrifugal trash pumps, including standard and indirect-intake configurations. As a direct factory replacement, this washer meets the same specifications as the original part installed at the time of manufacture. It is compatible across multiple PT-series variants — PT2A, PT2A(I), PT3A, PT3A(I), PT4A, and PT4A(I) — making it a versatile stocking item for operators and service technicians running mixed pump fleets. Verify your pump model before ordering to confirm compatibility.
Key Features
- Genuine OEM Material Consistency — Manufactured to the same hardness and dimensional tolerances as the original, ensuring correct load distribution across fastened joints in the pump assembly.
- Drop-In Installation — Matches the original hole size, outer diameter, and thickness for straightforward installation without rework or shimming.
- Broad PT-Series Coverage — Fits PT2A, PT2A(I), PT3A, PT3A(I), PT4A, and PT4A(I) trash pumps, covering both standard and indirect-intake variants in Wacker Neuson's self-priming pump lineup.
- Protects Fastener Integrity — A properly sized flat washer distributes clamping load evenly, preventing bolt heads or nuts from pulling through or deforming mounting surfaces under pump vibration.
- OEM Part Number Assurance — Sourced directly from Wacker Neuson under part number 5100050895, so you can cross-reference against your service manual with confidence.
A flat washer serves as a load-spreading interface between a fastener — bolt head or nut — and the surface it clamps against. In a high-vibration environment like a trash pump, washers absorb and distribute the clamping force to protect both the fastener and the mating surface from damage or loosening over time. When a washer is missing, undersized, or worn flat, fasteners can work loose under sustained pump vibration, leading to leaks, misalignment, or accelerated wear at critical joints.
Part Details
| Part Number | 5100050895 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flat 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.
