The Wacker Neuson 5200019859 is a genuine OEM Bolt designed for the APT4T and APT4S self-priming pump series, including Surge Brake, Electric Brake, and Cold Weather configurations. As a factory-sourced component, this bolt meets the exact specifications Wacker Neuson established for these pump assemblies, ensuring a correct, secure fit every time. Confirmed fitment includes the APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, APT4S Pump with Skid, and their respective Cold Weather variants.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Wacker Neuson's specified tensile and torque requirements for pump assembly applications, so the joint holds under operating vibration and load.
- Drop-In Replacement — Thread form, length, and head style match the original exactly, allowing direct installation without modification to the mounting hardware or surrounding components.
- Broad APT4T and APT4S Coverage — A single part number covers Surge Brake, Electric Brake, and Cold Weather variants across both the APT4T and APT4S pump families, simplifying parts ordering.
- Pump Assembly Integrity — A correctly spec'd bolt keeps pump housings, mounting brackets, and connected components properly torqued and sealed; a worn or incorrect fastener risks loosening under continuous pump operation.
- Sourced Direct from Wacker Neuson — Genuine OEM origin means this part carries the same part number used in Wacker Neuson service documentation, making cross-referencing and parts verification straightforward.
A bolt in a pump assembly does more than hold components together — it maintains the clamping force that keeps mating surfaces sealed and structurally aligned under the vibration, pressure, and thermal cycling generated during pump operation. On the APT4T and APT4S platforms, fasteners in the pump housing and mounting system are subject to continuous stress, and using a bolt with the correct grade, thread pitch, and length is essential for maintaining that joint over time. When a fastener is worn, incorrectly sized, or improperly torqued, it can lead to loosening, misalignment, or fluid ingress that compromises pump performance and accelerates wear on surrounding components.
Part Details
| Part Number | 5200019859 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Bolt |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4T Pump, Electric Brake | APT4T | 5200019644, 5200019643 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
| 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.
