The Wacker Neuson Roller Bearing is a genuine OEM roller bearing designed for the APT8S and APT8T pump series, including standard, cold weather, surge brake, and electric brake configurations. As a direct factory part, it meets the exact tolerancing and load specifications required by Wacker Neuson for these pumps. Whether you're servicing an APT8S Pump with Skid or an APT8T Pump with Electric Brake, part is the confirmed factory replacement. Order with confidence knowing this bearing is sourced directly from Wacker Neuson's OEM supply chain.
Key Features
- OEM-Grade Precision Tolerancing — Manufactured to exact radial and axial load specifications required for smooth, consistent rotation in Wacker Neuson pump assemblies.
- Drop-In Installation — Matches the original bearing seat dimensions exactly, so it seats and retains correctly without reworking surrounding components.
- Broad APT Series Coverage — Fits APT8S and APT8T pump models across standard, cold weather, surge brake, and electric brake variants — one part number covers the full range.
- Protects Pump Shaft and Housing — A correctly functioning roller bearing keeps rotating components properly aligned; a worn bearing allows shaft deflection that accelerates seal wear and damages the pump housing.
- Genuine Wacker Neuson Part — Supplied as a genuine OEM component, ensuring traceability and compatibility with current APT8S and APT8T production specifications.
A roller bearing supports and guides a rotating shaft by reducing friction between moving parts through rolling elements rather than sliding contact. In a water pump like the APT8S or APT8T, the roller bearing holds the pump shaft in precise alignment under both radial loads from belt or impeller forces and axial loads from fluid pressure. When a roller bearing wears or fails, the shaft loses alignment, which puts stress on seals and surrounding components — leading to leaks, increased heat, and eventual pump failure.
Part Details
| Part Number | 5200021798 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Roller Bearing |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT8T Pump, Surge Brake | APT8T | 5200019648, 5200019649 |
| APT8T Pump, Surge Brake, Cold Weather | APT8T CW | 5200019796, 5200019797 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
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.
