Wacker Neuson 5100011864 O-Ring Seal

The Wacker Neuson 5100011864 O-Ring Seal is a genuine OEM component designed for the RD-series tandem rollers, covering a wide range of walk-behind and ride-on articulated models including the RD18, RD24, RD27, RD28, RD40, and RD45 families. As a direct OEM replacement, part 5100011864 is manufactured to the exact material grade and dimensional tolerances specified for these machines, ensuring a proper seal every time. This part fits an extensive range of RD-series configurations — including smooth drum, combination drum, DPF, and electric variants — making it a versatile stock item for fleets running multiple roller models.

Key Features

• OEM-Grade Elastomer Construction — Manufactured to the precise durometer and cross-section spec required for this application, maintaining effective sealing under the hydraulic pressures and temperature cycles typical of tandem roller operation.
• Drop-In Replacement — Matches the exact groove dimensions of the OEM seat, seating cleanly without stretching, trimming, or adapting to fit.
• Broad RD-Series Coverage — Compatible with RD18, RD24, RD27, RD28, RD40, and RD45 tandem rollers across smooth drum, combination drum, DPF, and electric configurations — both walk-behind and ride-on articulated models.
• Leak Prevention at the Source — A correctly seated O-Ring Seal prevents hydraulic or fluid leaks that would otherwise compromise drum drive performance, steering response, or vibration system output on the roller.
• Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, carrying the correct part number 5100011864 for confident identification and accurate service record keeping.

An O-Ring Seal creates a pressure-tight barrier between mating components in hydraulic circuits, fluid passages, and rotating assemblies. On tandem rollers like the RD series, these seals are found throughout the drum drive, vibratory, and steering hydraulic systems, preventing fluid bypass that would cause loss of drive force, erratic vibration output, or steering sluggishness. When an O-Ring Seal hardens, cracks, or is displaced from its groove, even minor fluid leakage can escalate into component damage — making timely replacement essential to keeping the roller performing at full compaction capacity.

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.