The Wacker Neuson Hexagonal Head Cap Screw is a genuine OEM component designed for the APT4S and APT4T pump series, including standard, cold weather, surge brake, and electric brake configurations. As a direct Wacker Neuson OEM part, the is manufactured to the same specifications as the original hardware, ensuring a proper fit every time. This screw is compatible across six distinct APT pump variants, making it a versatile stocking item for contractors and service technicians running Wacker Neuson dewatering equipment.
Key Features
- OEM Thread and Head Geometry: — Manufactured to exact hexagonal head and thread specifications, so the fastener seats flush and torques correctly without stripping or over-tightening.
- Drop-In Hardware Replacement: — Matches the original bolt pattern and dimensions of the APT pump assembly, allowing installation with standard hex tooling and no re-drilling or re-tapping.
- Broad APT Series Compatibility: — Fits APT4S Pump with Skid, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, and all corresponding Cold Weather variants, covering the full APT4 pump family.
- Structural Integrity Under Load: — A correctly torqued cap screw keeps pump components securely clamped during operation; a failed or missing fastener can allow vibration-induced loosening, misalignment, and accelerated wear on mating parts.
- Genuine Wacker Neuson OEM Part: — Sourced directly from Wacker Neuson, this fastener meets the same material and hardness grade as the hardware originally installed on the pump, giving you confidence in long-term holding strength.
A hexagonal head cap screw is a threaded fastener used to clamp two or more components firmly together within an assembly. On a pump unit like the APT series, cap screws secure housings, brackets, and mechanical sub-assemblies against the continuous vibration and hydraulic forces generated during operation. When a cap screw loosens, shears, or corrodes, the joint it holds can shift or separate, leading to leaks, misalignment, or damage to surrounding components — making timely replacement with the correct hardware essential to keeping the pump running as intended.
Part Details
| Part Number | 5200020101 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Head Cap Screw |
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.
