Wacker Neuson 5000212628 Locknut

The Wacker Neuson Locknut is a genuine OEM fastener designed for the DPU 80, DPU 90, and DPU 110 series reversible vibratory plate compactors. As a direct Wacker Neuson OEM part, the is manufactured to the same specification as the original hardware, ensuring a precise threaded engagement with no guesswork on sizing or thread pitch. Compatibility spans a wide range of DPU models including the DPU80Lec, DPU90Lec, DPU110Lec, DPU80Lem, DPU90Lem, DPU110Lem, and their reverse-capable rL variants, covering both standard and US-market configurations. Whether you are servicing a single machine or maintaining a fleet of heavy-duty diesel plate compactors, this locknut is the correct OEM replacement to keep critical fastening points secure.

Key Features

• Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's original thread specification, so torque retention and clamping force match what the machine was built with from the factory.
• Drop-In Hardware Replacement — Threads directly into the original fastening point with no chasing, re-tapping, or adaptation required — the thread form and dimensional profile are identical to the part it replaces.
• Broad DPU Series Coverage — Fits DPU 80, DPU 90, and DPU 110 reversible plate compactors across Lec, Lem, rLec, and rLem configurations, including US-market variants and the DPU 80–110 KMAT vibration plate.
• Maintains Secure Fastening Under Vibration — Reversible plate compactors generate sustained cyclic vibration during operation; a correctly spec'd locknut resists backing off under those dynamic loads, keeping critical assemblies held to torque.
• Fastener-Critical Safety Application — Locknuts in compaction equipment secure components that must remain torqued under continuous vibration; using the correct OEM part ensures the locking mechanism functions as engineered and does not compromise structural integrity.

A locknut is a vibration-resistant threaded fastener that uses a locking mechanism — typically a nylon insert, prevailing-torque thread form, or deformed thread profile — to prevent the nut from loosening when subjected to constant movement or shock loads. On reversible vibratory plate compactors like the DPU series, components are exposed to continuous, high-frequency vibration throughout every work cycle, making standard nuts susceptible to back-off over time. When a locknut fails or is replaced with an incorrect substitute, fastened assemblies can work loose, leading to mechanical play, accelerated wear on surrounding components, or outright failure of the joint — all of which take a machine out of service.

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.