The Wacker Neuson 5200021824 is a genuine OEM Isolator Pad designed for the APT4T and APT4S series trailer-mounted pumps. As a direct OEM replacement, this pad is manufactured to the same specifications as the original component — ensuring a correct, no-compromise installation on your pump unit. Fitment covers multiple APT4T and APT4S configurations, including Electric Brake, Surge Brake, standard, and Cold Weather variants.
Key Features
- Genuine OEM Vibration Control: — Engineered to the exact compression and material grade of the original, maintaining correct isolation characteristics between the pump assembly and trailer frame.
- Drop-In Installation: — Matches the original mounting footprint on APT4T and APT4S pump units, seating correctly without any rework or modification to the mount points.
- Broad APT Series Compatibility: — Fits APT4T (Electric Brake and Surge Brake) and APT4S (standard and Cold Weather) configurations, covering the full range of these trailer pump variants.
- Preserves Pump Structural Integrity: — A worn or cracked isolator pad allows metal-to-metal contact between the pump and frame, accelerating wear on mounting hardware and increasing transmitted vibration to the trailer structure.
- Sourced Directly from Wacker Neuson: — Carries full OEM part number 5200021824, so you can verify the correct part against your machine's service documentation before ordering.
An isolator pad is a vibration-dampening component mounted between the pump assembly and the trailer frame or subframe. Its role is to absorb and isolate the operational vibration generated by the pump, preventing that energy from transferring directly into the trailer structure. When the pad degrades — through compression set, cracking, or material breakdown — vibration is no longer effectively absorbed, which can loosen fasteners, stress mounting points, and shorten the service life of surrounding components. Replacing a worn isolator pad restores proper vibration isolation and protects the rest of the pump mounting system.
Part Details
| Part Number | 5200021824 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Isolator Pad |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
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.
