The Wacker Neuson 5200021629 is a genuine OEM Bearing Spacer designed for the APT4T and APT4S series self-priming trash pumps, including surge brake, electric brake, and cold weather configurations. As a direct factory replacement, this spacer maintains the precise shaft and bearing alignment that Wacker Neuson specifies for these pump families. It fits both the standard and skid-mounted APT4S variants, covering the full range of APT4T and APT4S configurations in the field. Sourcing the correct OEM part means you can trust the dimensional accuracy needed to keep the pump drivetrain operating as designed.
Key Features
- OEM-Specified Dimensional Accuracy — Machined to the exact thickness and bore tolerances Wacker Neuson requires to maintain correct bearing preload and shaft positioning in the pump assembly.
- Drop-In Replacement — Installs in the same position as the original with no modification to the shaft, housing, or bearing stack.
- Broad APT4T and APT4S Coverage — Compatible with surge brake, electric brake, standard, and cold weather variants of both the APT4T and APT4S pump series, including skid-mounted configurations.
- Protects Bearing Service Life — A correctly fitted spacer prevents bearing misload and lateral shaft movement; a worn or missing spacer accelerates bearing wear and can lead to premature pump failure.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, ensuring the part meets the same material and dimensional standards as the original component installed at the factory.
A bearing spacer is a precision-machined collar positioned between bearing assemblies on a rotating shaft. Its role is to maintain the correct axial separation between bearings, ensuring the shaft runs true and bearing loads are distributed as intended. When a bearing spacer is worn, damaged, or dimensionally incorrect, the bearings can shift under load, leading to increased vibration, accelerated wear, and eventual shaft or housing damage that turns a minor repair into a major rebuild.
Part Details
| Part Number | 5200021629 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Bearing Spacer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
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.
