The Wacker Neuson Hexagonal Flange Head Screw is a genuine OEM component designed for the DPU40Yeh, APT4S, and APT4T series machines. Sourced directly from Wacker Neuson, this screw is manufactured to the exact specifications used in original production, ensuring it seats and torques correctly without the need for adjustment. It is verified to fit across multiple configurations within the APT4S and APT4T pump families, including cold weather and brake variants.
Key Features
- OEM Thread and Flange Geometry — Manufactured to the precise head diameter, flange profile, and thread pitch specified for these assemblies, ensuring correct clamping load and seating.
- Direct-Fit Installation — Drops into the existing fastener position on compatible machines with no reworking of mounting surfaces or hardware required.
- Broad Series Compatibility — Fits DPU40Yeh compactors and the full APT4S and APT4T pump series, including standard, electric brake, surge brake, and cold weather configurations.
- Structural Integrity Under Load — A correctly spec'd flange head screw distributes clamping force evenly across the joint face, preventing component loosening, vibration-related fastener failure, and assembly damage over time.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM replacement, so the part number, material grade, and finish match what was installed at the factory.
A hexagonal flange head screw combines a standard hex bolt head with an integrated washer-like flange beneath it. The flange spreads the clamping load over a wider surface area than a standard bolt head, which helps prevent the fastener from pulling through softer materials and keeps the joint secure under vibration. When a fastener of this type is worn, stripped, or substituted with an incorrect size, it can compromise the integrity of the entire assembly — leading to component movement, accelerated wear on surrounding parts, or fastener failure under operating stress.
Part Details
| Part Number | 5200019866 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Flange Head Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| DPU40Yeh EU | DPU40Yeh EU | 5100068379 |
| 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.
