The Wacker Neuson Snubber Washer is a genuine OEM component designed for the APT4S and APT4T pump series, including cold weather and surge brake variants. As a direct OEM replacement, this snubber washer is sourced from Wacker Neuson and built to the same specification as the part originally installed at the factory. Compatible models include the APT4S Pump with Skid, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, and their corresponding cold weather configurations. Keeping this small but critical component in good condition helps maintain proper pump operation and protects surrounding components from wear and vibration damage.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's exact material and dimensional tolerances for the snubber washer application, ensuring correct compression and cushioning behavior under load.
- Drop-In Replacement — Matches the original mounting position and contact geometry, fitting directly into the pump assembly without rework or modification to adjacent hardware.
- Broad APT Series Coverage — Fits the full APT4S and APT4T pump lineup, including surge brake, electric brake, and cold weather variants across all six listed configurations.
- Protects Against Vibration Fatigue — A correctly functioning snubber washer absorbs shock and dampens movement between mating parts, preventing premature wear on fasteners and surrounding pump components.
- Verified Part Number — Part number 5200021825 is confirmed against Wacker Neuson's parts documentation for the APT4S and APT4T series, giving you confidence before you order.
A snubber washer acts as a buffer between two mating surfaces, absorbing impact, limiting movement, and reducing metal-to-metal contact under dynamic loading conditions. In a pump assembly like the APT4S and APT4T series, it helps isolate vibration and controls the travel of components that experience repeated pressure cycles during operation. When a snubber washer wears out, hardens, or becomes damaged, it can allow excessive movement between parts, accelerating wear on fasteners, housings, and adjacent components and potentially leading to more significant mechanical issues over time.
Part Details
| Part Number | 5200021825 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Snubber Washer |
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.
Wacker Neuson