The Wacker Neuson Washer is a genuine OEM replacement built for PT4A and PT4A(I) series trash pumps. Sourced directly from Wacker Neuson, this washer matches the exact specification of the original component, ensuring a correct, trouble-free installation. It is confirmed compatible across multiple PT4A and PT4A(I) model configurations, so you can order with confidence knowing this is the right part for your machine.
Key Features
- Genuine OEM Dimensions — Manufactured to the exact thickness and bore tolerances of the original Wacker Neuson washer, maintaining proper load distribution and clamping force at the fastener joint.
- Drop-In Replacement — Seats and torques just like the factory part, with no filing, shimming, or adjustment needed during reassembly.
- Broad PT4A Series Fitment — Confirmed fit across PT4A and PT4A(I) trash pump configurations, covering multiple production variants within that model family.
- Protects Mating Surfaces — A correctly spec'd washer distributes fastener load evenly, preventing surface damage, fastener loosening, and premature wear on the components it seats against.
A washer serves as a critical load-distribution component at bolted and fastened joints throughout a machine. By spreading the clamping force of a fastener over a wider surface area, it prevents the bolt head or nut from embedding into or damaging softer materials and keeps connections securely torqued under vibration and operational stress. When a washer is missing, undersized, or deformed, fasteners can work loose over time, leading to misalignment, leaks, or mechanical failure at that joint.
Part Details
| Part Number | 5100044577 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT4A | PT4A | 5100042217, 5100042604 |
| 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.
Wacker Neuson