The Wacker Neuson 5200021708 is a genuine OEM Lip Seal designed for the APT8S and APT8T pump series. This direct-replacement seal fits across the APT8S Pump with Skid, APT8T Pump with Electric Brake, and APT8T Pump with Surge Brake configurations, including cold weather variants. As a genuine Wacker Neuson part, the 5200021708 is manufactured to the same specifications as the original component, ensuring a correct, drop-in fit with no guesswork on compatibility.
Key Features
- Genuine OEM Material Grade — Produced to Wacker Neuson's original seal compound and dimensional spec, maintaining the compression and flexibility characteristics this pump series demands.
- Drop-In Replacement — Engineered to seat and seal exactly as the original, fitting the same bore geometry without rework or shimming.
- Broad APT8 Series Coverage — Confirmed fitment across APT8S Pump with Skid, APT8T Pump with Electric Brake, APT8T Pump with Surge Brake, and all corresponding cold weather variants.
- Preserves Pump Integrity — A correctly functioning lip seal prevents fluid ingress and leakage at the shaft, keeping pump output consistent and protecting internal components from contamination.
- Fluid Containment and Leak Prevention — A worn or failed lip seal allows fluid to bypass the shaft interface, leading to measurable fluid loss, contamination of adjacent components, and potential pump failure if left unaddressed.
A lip seal is a flexible sealing element that wraps tightly around a rotating or reciprocating shaft to prevent fluid from escaping the pump housing and to block external contaminants from entering. In the APT8S and APT8T pump series, the lip seal maintains the pressure boundary at the shaft exit point, which is critical to sustaining consistent pump performance and preventing fluid loss during operation. When a lip seal wears, cracks, or loses its compression, leaks develop at the shaft — a condition that worsens quickly under load and can lead to broader pump damage if the seal is not replaced promptly.
Part Details
| Part Number | 5200021708 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lip Seal |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT8T Pump, Electric Brake, Cold Weather | APT8T CW | 5200019797, 5200019796 |
| APT8T Pump, Electric Brake | APT8T | 5200019649, 5200019648 |
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.
