Wacker Neuson 5000079756 Expansion Plug

The Wacker Neuson Expansion Plug is a genuine OEM component designed for the RD880V Double Drum Vibratory Roller. Sourced directly from Wacker Neuson, this plug is manufactured to the same specifications as the original part fitted at the factory, ensuring a correct, secure installation every time. If you're servicing or rebuilding your RD880V, using the correct OEM expansion plug is the straightforward way to restore a proper seal and keep fluid pathways or bores properly blocked off.

Key Features

• Genuine OEM Material Integrity — Manufactured to original Wacker Neuson specifications, ensuring the correct material grade and dimensional tolerancing for a consistent, pressure-holding fit in its bore.
• Direct-Install Replacement — Matches the original plug profile exactly, seating into its bore without rework or adjustment during installation.
• Confirmed Fitment for RD880V — Verified for the RD880V Double Drum Vibratory Roller, eliminating guesswork when ordering replacement hardware for this machine.
• Prevents Contamination and Fluid Loss — A properly seated expansion plug seals off internal passages and cavities, protecting the machine from fluid intrusion, contamination, or unintended drainage during operation.
• Correct Part for Confident Servicing — Using the OEM-specified plug ensures the bore is sealed to the original engineering intent, which matters during engine or drivetrain service where passage integrity is critical.

An expansion plug — sometimes called a freeze plug or core plug — is pressed into a machined bore in a block, housing, or casting to seal off internal passages created during the manufacturing process. It maintains fluid containment and prevents contamination from entering critical internal circuits. When an expansion plug corrodes, loosens, or is damaged during service, it can allow coolant or oil to escape or allow debris to enter internal passages, leading to more serious mechanical issues if not promptly addressed.

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.