Wacker Neuson 5100036867 Wing Nut

The Wacker Neuson Wing Nut is a genuine OEM Wing Nut designed for the APT4S, APT6S, APT8S, APT4T, APT6T, and APT8T series water pumps, including skid-mounted and trailer models with surge brake, electric brake, and cold weather configurations. As a factory-sourced component, it is manufactured to the exact tolerances and thread specifications Wacker Neuson requires for proper fastener engagement on these pump assemblies. Whether you are servicing a standard unit or a cold weather variant, this is the correct replacement part to restore your machine to original operating condition.

Key Features

• Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's exact thread pitch and grip specifications, ensuring the fastener seats and releases cleanly every time — critical for a hand-tightened component subject to repeated field service cycles.
• Hand-Tool-Free Installation — Designed for tool-free tightening and loosening by hand, allowing quick access during pump maintenance without the need for wrenches or sockets.
• Broad APT Series Coverage — Fits the complete APT4S, APT6S, APT8S, APT4T, APT6T, and APT8T pump lineup, including skid, surge brake, electric brake, and cold weather variants across all frame sizes.
• Secure Panel and Cover Retention — Keeps access covers and panels firmly in place during operation, preventing vibration-induced loosening on high-cycle pump equipment.
• Backed by Wacker Neuson OEM Sourcing — Sourced directly through Wacker Neuson's parts network, so you receive the same component installed at the factory — not a generic substitute.

A wing nut is a threaded fastener designed to be tightened and loosened by hand, using its protruding "wings" in place of a wrench flat. On water pump equipment like the Wacker Neuson APT series, wing nuts are typically used to secure access panels, covers, or components that require regular removal for inspection, servicing, or hose connections. When a wing nut becomes stripped, cracked, or corroded, it can no longer hold the retained component securely — leading to loose covers during operation or the inability to properly close and seal an access point. Replacing a damaged wing nut promptly keeps routine service tasks straightforward and ensures panels stay correctly seated under the vibration and load of normal pump operation.

Part Details

Compatibility & Fitment

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.