The Wacker Neuson 5200021695 is a genuine OEM O-Ring designed for the APT6T and APT6S series pumps, including electric brake, surge brake, and cold weather configurations. As a direct OEM replacement, this seal is manufactured to the same tolerances and material specification as the original, ensuring a correct, leak-free installation in the pump assembly. It is compatible with multiple APT6T and APT6S variants, making it a versatile service item to keep on hand for pump maintenance. Confirm your machine's model number against the fitment list before ordering to ensure this is the correct seal for your application.
Key Features
- OEM-Grade Elastomer Sealing — Manufactured to the same material compound and dimensional spec as the original, ensuring proper compression and fluid-tight sealing within the pump housing.
- Drop-In Replacement Seal — Seats directly into the original groove geometry on APT6T and APT6S pump assemblies without modification to the surrounding components.
- Broad APT6 Series Coverage — Fits APT6T (electric brake and surge brake) and APT6S (w/Skid) variants, including all listed cold weather configurations.
- Preserves Pump Integrity — A correctly seated O-Ring maintains internal pressure and prevents fluid bypass; a worn or damaged seal leads to leaks, pressure loss, and accelerated wear on surrounding pump components.
- Fluid-System Safety — A properly functioning seal prevents hydraulic fluid or pump media from escaping the system, protecting both the operator and the surrounding equipment from exposure or contamination.
An O-Ring is a precision elastomeric seal that sits in a machined groove to create a pressure-tight barrier between mating surfaces within the pump assembly. In pump applications like the APT6T and APT6S, it prevents fluid from bypassing or leaking at connection and housing joints, which is essential to maintaining consistent output pressure and protecting internal components. When an O-Ring degrades, hardens, or deforms, it can no longer hold a reliable seal, resulting in visible leaks, reduced pump performance, and potential damage to adjacent parts.
Part Details
| Part Number | 5200021695 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6T Pump, Electric Brake | APT6T | 5200019647, 5200019646 |
| APT6T Pump, Electric Brake, Cold Weather | APT6T CW | 5200019795, 5200019794 |
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
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.
