Wacker Neuson 5004101500 Locknut

The Wacker Neuson is a genuine OEM Locknut designed for a broad range of Wacker Neuson compaction equipment, including RD7 walk-behind tandem rollers and DPU-series reversible vibratory plate compactors such as the DPU 4045H, DPU 5045H, DPU 5545H, DPU 4545H, and DPU 6555H. As a genuine OEM component, it is manufactured to the exact specification required by the original machine design, ensuring proper torque retention and mechanical security in service. This Locknut also covers fitment across select DPS single-direction vibratory plates and earlier RD-series tandem roller variants including the RD10 and RD15. Verify your machine's model number against the fitment list before ordering to confirm compatibility.

Key Features

• Genuine OEM Thread Integrity — Manufactured to exact thread pitch and hardness specifications, ensuring secure clamping force without stripping or backing off under vibration loads typical of compaction equipment.
• Direct Drop-In Replacement — Matches the original fastener profile for tool-free identification and straightforward installation without rework to mating components.
• Wide Compaction Equipment Fitment — Compatible with the RD7, RD10, and RD15 tandem roller series as well as DPU 4045H, DPU 4545H, DPU 5045H, DPU 5545H, and DPU 6555H reversible vibratory plate compactors, plus select DPS single-direction plates.
• Vibration-Resistant Locking — The locking feature of this nut is engineered to maintain clamp load in high-vibration environments, preventing loosening during continuous compaction operation.
• Critical Fastener Safety — A failed or under-torqued locknut on compaction equipment can allow mechanical assemblies to shift or separate during operation; using the correct OEM replacement maintains the mechanical integrity the machine was built with.

A locknut is a fastener engineered to resist loosening when subjected to vibration, shock loads, and cyclical stress — conditions that are constant during vibratory compaction work. Unlike standard hex nuts, a locknut incorporates a locking mechanism (such as a nylon insert, deformed thread, or prevailing-torque profile) that maintains clamping force even as the surrounding assembly flexes and vibrates. On compaction equipment like tandem rollers and reversible vibratory plates, locknuts are used at critical connection points where a standard nut would gradually back off and allow components to shift. When a locknut wears out, loses its locking friction, or is substituted with a standard nut, the risk of fastener loosening and consequent mechanical damage increases significantly.

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.