Wacker Neuson 5100022841 Union Nut

The Wacker Neuson Union Nut is a genuine OEM component designed for the RC50, RC70, and RC110 series single drum soil compactors. As a direct-from-manufacturer part, it meets the exact specifications of the original hardware, ensuring a correct, trouble-free installation every time. This union nut fits an extensive range of RC-series configurations including CAB, ROPS, DPF, VO, and P variants across both standard and US-spec machines. If you're servicing one of these compactors and need a part you can count on, the is the correct replacement.

Key Features

• Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's original torque and thread specification, so the union seats and seals correctly without risk of stripping or cross-threading.
• Direct Drop-In Replacement — Matches the original union nut dimensions exactly, threading into the existing connection point without modification or rework.
• Broad RC-Series Compatibility — Fits RC50, RC50p, RC70, RC70p, RC70vo, RC110, and RC110p models in CAB, ROPS, DPF, and US-spec configurations — one part number covers the full RC family.
• Maintains Secure Fluid or Line Connections — A worn or damaged union nut can allow connections to loosen under vibration, leading to leaks or loss of system pressure; replacing it promptly keeps hydraulic or fluid circuits properly sealed.
• Backed by Wacker Neuson OEM Quality — Sourced directly through the Wacker Neuson parts network, this component carries the same material grade and dimensional accuracy as the part it replaces.

A union nut is a threaded fastening component used to create a secure, leak-free connection between two mating fittings or line ends — typically in hydraulic, fuel, or fluid systems. It works by drawing the two connection faces together as it is tightened, compressing any sealing surface and locking the joint against vibration and pressure. On a vibratory soil compactor like the RC-series, where the machine generates continuous mechanical vibration during operation, a compromised or worn union nut can work loose over time, causing fluid loss or system pressure drop that affects compaction performance and can lead to more extensive component damage if left unaddressed.

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.