Wacker Neuson 5100022842 Union Nut

The Wacker Neuson Union Nut is a genuine OEM component designed for the RC50, RC50P, RC70, RC70P, and RC70VO single drum soil compactor series. As a direct factory replacement, this union nut is sourced from Wacker Neuson and manufactured to the same specifications as the original part. It fits both standard and US-market variants across the RC50 and RC70 model families, making it a dependable choice for planned maintenance or unscheduled repairs. Confirm your model number before ordering to ensure an accurate match.

Key Features

• Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's original dimensional tolerances, ensuring correct thread engagement and a leak-free, secure connection every time.
• Drop-In Replacement — Designed to install directly in place of the original union nut with no reworking of fittings or adjacent components required.
• Broad RC Series Compatibility — Fits RC50, RC50P, RC70, RC70P, and RC70VO single drum soil compactors, covering both standard and US-market variants.
• Maintains Hydraulic or Fluid Circuit Integrity — A correctly torqued union nut holds system pressure and prevents fluid loss; a worn or damaged nut can allow leaks that compromise compactor performance and fluid levels.
• Corrosion-Resistant Construction — Built to withstand the harsh, vibration-heavy environment of soil compaction work, resisting loosening and wear over extended service intervals.

A union nut is a threaded fastener used to create a secure, removable connection between two fluid-carrying components — such as hydraulic lines, fittings, or pipe assemblies. It works by drawing two mating faces together under clamping force, forming a tight seal that prevents fluid from escaping under operating pressure. When a union nut cracks, strips, or corrodes, it can allow hydraulic fluid or other fluids to leak, leading to pressure loss, contamination, and potential damage to surrounding components — making timely replacement essential to keeping the compactor running correctly.

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.