Wacker Neuson 5100012939 Washer

The Wacker Neuson Washer is a genuine OEM replacement built for a wide range of Wacker Neuson RD series tandem rollers and RC series single drum soil compactors. As a direct OEM component, this washer is produced to the exact tolerances and material specifications used during original assembly, ensuring consistent load distribution and secure fastener seating across the machines it serves. It fits a broad lineup including the RD18, RD24, RD27, RD28, RD40, and RD45 tandem rollers as well as the RC50, RC70, and RC110 single drum compactor families. Having the correct replacement part on hand means getting your compaction equipment back to work without guesswork or fitment issues.

Key Features

• Genuine OEM Material Grade — Manufactured to the same hardness and dimensional tolerances as the original, maintaining correct clamping load and surface contact under compaction vibration and stress cycles.
• Drop-In Direct Replacement — Matches the original hole diameter, outer diameter, and thickness for tool-free alignment and straightforward installation in existing fastener assemblies.
• Broad Compactor Compatibility — Fits RD18, RD24, RD27, RD28, RD40, and RD45 tandem roller series and RC50, RC70, and RC110 single drum soil compactor families, covering both standard, canopy, and open-ROPS configurations.
• Consistent Fastener Preload — A correctly seated washer distributes clamp force evenly across mating surfaces, preventing fastener loosening caused by the continuous vibration inherent to compaction equipment.
• Verified OEM Part Number — Sourced directly through Wacker Neuson's parts program under part number 5100012939, so you can order with confidence that you're receiving the correct component for your machine.

A washer functions as a load-spreading element placed beneath a bolt head or nut to distribute clamping force over a wider surface area. On compaction equipment like tandem rollers and soil compactors — where constant vibration is part of normal operation — washers play a critical role in keeping fastened joints tight and protecting mating surfaces from fretting damage. When a washer becomes worn, deformed, or missing, the fastener can lose preload, leading to loosened connections, surface wear on housings and brackets, and potential component failure that takes the 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.