The Wacker Neuson Bearing Housing is a genuine OEM component designed for the APT4S and APT4T pump series, including standard and cold weather variants. As a direct OEM replacement, this part is sourced from Wacker Neuson and built to the same specifications as the original, ensuring a correct, confidence-inspiring fit every time. Compatibility spans across APT4S Pump with Skid, APT4T Pump with Surge Brake, and APT4T Pump with Electric Brake configurations, in both standard and cold weather versions. Having the right bearing housing on hand keeps your pump running at full capacity with minimal interruption to your operation.
Key Features
- OEM Precision Tolerancing — Manufactured to exact bore and housing dimensions, ensuring the bearing seats correctly and maintains proper shaft alignment under load.
- Drop-In OEM Replacement — Matches the original mounting points and interfaces of the APT4S and APT4T pump assemblies, allowing straightforward installation without modification.
- Broad APT Series Fitment — Compatible with APT4S and APT4T pump models across surge brake, electric brake, and cold weather configurations — six model variants covered by a single part number.
- Supports Consistent Pump Output — A correctly fitted bearing housing keeps the pump shaft centered and rotating true, sustaining steady water flow and protecting internal components from premature wear.
- Genuine Wacker Neuson Part — Supplied as an authorized OEM component, meaning materials, hardness ratings, and dimensional tolerances match what left the factory originally.
The bearing housing is a structural component that encases and supports the bearing assembly within the pump, holding the rotating shaft in precise alignment during operation. It absorbs both radial and axial loads generated by the pump impeller, preventing shaft deflection that would otherwise accelerate bearing wear and cause vibration or loss of efficiency. When a bearing housing becomes cracked, worn out of tolerance, or corroded, shaft misalignment follows quickly — leading to increased bearing failure rates, seal leaks, and reduced pump performance.
Part Details
| Part Number | 5200021716 |
|---|---|
| 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.
