The Wacker Neuson Stud is a genuine OEM component designed for the APT4S and APT4T series water pumps, including standard, surge brake, electric brake, and cold weather configurations. As a factory-sourced part, the meets the exact material and dimensional standards set by Wacker Neuson for these pump assemblies. This stud is confirmed to fit across six pump configurations spanning the APT4S and APT4T series, making it the correct choice whether you are servicing a skid-mounted or cold weather unit. Having the right fastener on hand keeps your pump assembly structurally sound and ready for the next job.
Key Features
- Genuine OEM Fastener Grade — Sourced directly from Wacker Neuson, this stud matches the exact thread profile, length, and tensile specification required for secure pump assembly.
- Drop-In Replacement — Threads into the original mounting position without rework, fitting the same bores and mating hardware as the factory-installed stud.
- Broad APT Series Coverage — Fits APT4S and APT4T pump models in standard, surge brake, electric brake, and cold weather variants — one part number covers the full configuration range.
- Structural Integrity Under Load — A stud in proper condition holds pump components in precise alignment; a stripped or failed stud can lead to misalignment, vibration, and accelerated wear across the assembly.
- Brake System Fastener Relevance — On surge brake and electric brake variants, fastener integrity directly supports the brake system's mounting security — using a verified OEM stud is the correct approach for these configurations.
A stud is a headless threaded fastener used to create a fixed anchor point within an assembly, allowing components to be drawn together and secured with a nut. In pump applications, studs hold critical housings, covers, and mounting brackets in firm alignment under continuous vibration and hydraulic load. When a stud corrodes, strips, or fractures, the joint it supports loses clamping force, which can allow movement between components, cause leaks, or result in component damage that extends well beyond the fastener itself.
Part Details
| Part Number | 5200020058 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Stud |
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.
