The Wacker Neuson Washer is a genuine OEM replacement built for the PT3A, PT4A, PT3A(I), and PT4A(I) series trash pumps. Sourced directly from Wacker Neuson, this washer carries the same part number, material spec, and dimensional tolerances as the component installed at the factory — so it fits exactly where the original did without any guesswork. Genuine OEM designation means you're getting the precise thickness and load-bearing profile the pump assembly was engineered around. Whether you're completing a scheduled service or addressing wear on a working machine, part number keeps the hardware stack correctly tensioned and properly seated.
Key Features
- OEM-Matched Dimensional Tolerance — Stamped to the exact thickness and inner/outer diameter specified for this pump assembly, ensuring correct clamping load and surface contact.
- Drop-In Hardware Replacement — Matches the original mounting position and fastener interface on the PT3A and PT4A series, so installation follows the same procedure as the factory-fitted part.
- Broad PT-Series Fitment — Confirmed for PT3A, PT4A, PT3A(I), and PT4A(I) trash pump models across both standard and direct-injection variants.
- Protects Mating Surfaces — A washer in correct condition distributes fastener load evenly, preventing galling, deformation, or loosening of adjoining components over time.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM component under part number 5100044496, backed by Wacker Neuson's parts program for quality assurance.
A washer serves as a load-distributing interface between a fastener — such as a bolt or nut — and the surface it bears against. By spreading clamping force over a wider area, it prevents the fastener from cutting into or deforming softer materials and helps maintain consistent tension across the joint. When a washer becomes corroded, deformed, or missing altogether, fasteners can work loose under vibration, mating surfaces can become damaged, and the integrity of the surrounding assembly is compromised — making timely replacement an important part of keeping the pump running correctly.
Part Details
| Part Number | 5100044496 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3A | PT3A | 5100042216 |
| PT4A | PT4A | 5100042217, 5100042604 |
| 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.
