The Wacker Neuson O-Ring is a genuine OEM sealing component designed for PT2A and PT2A(I) series self-priming centrifugal trash pumps. Sourced directly from Wacker Neuson, this O-Ring matches the exact material grade, durometer, and dimensional profile of the original part — ensuring a proper seal at every mating surface it services. Whether you're completing a routine service or addressing a leak, fitting the correct OEM O-Ring on your PT2A or PT2A(I) pump keeps the system running at rated capacity without fluid bypass or pressure loss.
Key Features
- Exact Material and Dimensional Match — Manufactured to the original compound and cross-section spec, so compression and sealing force are consistent with how the pump was engineered from the factory.
- Genuine OEM Part — Supplied directly by Wacker Neuson, carrying part number 5100042469, with no substitutions or rebranded compounds.
- Direct Service Replacement — Seats into existing grooves without reworking or resizing — drop-in fitment for PT2A and PT2A(I) pump assemblies.
- Compatible with PT2A and PT2A(I) Trash Pumps — Verified fitment across both the standard and indirect-drive 2-inch self-priming centrifugal trash pump variants.
- Leak Prevention at the Source — A worn or cracked O-Ring allows fluid bypass, pressure drop, and potential pump cavitation; replacing it on schedule protects pump output and internal components from accelerated wear.
An O-Ring creates a compression-based fluid seal between two mating surfaces — typically a housing, cover, or port face — preventing liquid from escaping the pressurized flow path. In a trash pump like the PT2A series, O-Rings are used throughout the pump body and casing joints to maintain prime and sustain discharge pressure. When an O-Ring hardens, cracks, or takes a permanent set, the seal fails and the pump loses the ability to hold prime, resulting in reduced flow, intermittent discharge, or complete loss of pumping performance. Replacing the O-Ring with the correct OEM part restores the integrity of the seal and returns the pump to full working condition.
Part Details
| Part Number | 5100042469 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT2A | PT2A | 5100042215 |
| PT2A(I) | PT2A(I) | 5100042613 |
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.
