The Wacker Neuson Bearing Housing is a genuine OEM bearing housing designed for the APT4S and APT4T pump series, including standard, surge brake, electric brake, and cold weather configurations. As a factory-sourced component, it is manufactured to the exact tolerances required to maintain proper shaft alignment and load distribution within the pump assembly. This part covers a broad range of APT4S and APT4T variants, making it the correct choice whether you are servicing a skid-mounted unit or a cold weather-equipped model. Verify your model number against the fitment list before ordering to confirm this is the right part for your machine.
Key Features
- Precision-Toleranced OEM Construction — Manufactured to exact dimensional specs for correct bearing seat fit and load-bearing integrity within the pump housing.
- Drop-In Replacement — Engineered to align with existing mounting points and bearing interfaces on APT4S and APT4T pumps, making installation straightforward.
- Broad APT Series Fitment — Covers APT4S (standard and cold weather skid) and APT4T (surge brake, electric brake, and cold weather) pump variants under a single part number.
- Protects Shaft and Bearing Integrity — A correctly seated bearing housing keeps the drive shaft running true; a worn or cracked housing accelerates bearing failure and can lead to shaft damage and pump loss.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, so you get the same component that left the factory — no guesswork on material grade or dimensional accuracy.
The bearing housing is a structural component that surrounds and supports the bearings mounted on the pump's drive shaft. It holds the bearings in precise alignment so the shaft rotates smoothly under load, transferring power efficiently from the motor to the pump impeller. When the bearing housing cracks, corrodes, or wears beyond tolerance, bearings lose their seating, vibration increases, and shaft misalignment can cause accelerated wear across multiple connected components — turning a straightforward housing replacement into a far more costly repair if left unaddressed.
Part Details
| Part Number | 5200021715 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Bearing Housing |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
