The Wacker Neuson 5100021626 Isolator is a genuine OEM component designed for the APT4T, APT6T, APT8T, APT4S, APT6S, and APT8S series self-priming trash pumps, including surge brake, electric brake, skid-mount, and cold weather variants. As a direct OEM replacement, it meets the original design and material standards set by Wacker Neuson for this pump family. Verified fitment spans the full APT lineup — trailer-mounted and skid-mounted configurations alike — making 5100021626 the correct isolator choice across all major variants in this series. Confirm your model number before ordering to ensure a direct match.
Key Features
- Genuine OEM Vibration Control: — Manufactured to Wacker Neuson's original material and compression specifications, ensuring the isolator absorbs operational vibration the way the pump was engineered to handle it.
- Drop-In Replacement: — Matches the original mounting configuration and dimensions so it installs directly into the APT pump frame without alteration.
- Broad APT Series Fitment: — Covers APT4T, APT6T, APT8T, APT4S, APT6S, and APT8S models, including surge brake, electric brake, skid-mount, and cold weather variants.
- Protects Pump Structure from Vibration Fatigue: — A functioning isolator prevents engine vibration from transferring into the pump frame and trailer mount, reducing stress cracking and fastener loosening over time.
- OEM Part Number Verified: — Sourced as part number 5100021626 directly within the Wacker Neuson parts system for accurate identification and confident ordering.
An isolator is a vibration-damping mount that sits between the engine or pump assembly and the supporting frame, absorbing and dissipating the mechanical vibration generated during pump operation. By cushioning this connection point, the isolator prevents excessive vibration from transferring into the machine's chassis, trailer hitch, and surrounding components. When an isolator deteriorates or fails, vibration transfers directly into the frame — accelerating wear on fasteners, hoses, and structural welds, and creating noticeable instability during operation.
Part Details
| Part Number | 5100021626 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Isolator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT6T Pump, Surge Brake | APT6T | 5200019646, 5200019647 |
| APT6T Pump, Surge Brake, Cold Weather | APT6T CW | 5200019794, 5200019795 |
| APT6S Pump w/Skid | APT6S | 5200018982 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| APT8T Pump, Electric Brake, Cold Weather | APT8T CW | 5200019797, 5200019796 |
| APT8S Pump w/Skid | APT8S | 5200018987 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT8S Pump w/Skid, Cold Weather | APT8S CW | 5200019800 |
| APT8T Pump, Electric Brake | APT8T | 5200019649, 5200019648 |
| APT6S Pump w/Skid, Cold Weather | APT6S CW | 5200019799 |
| 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.
