Wacker Neuson 5000203645 O-Ring 18 X 2

The Wacker Neuson O-Ring 18 X 2 is a genuine OEM O-Ring 18 X 2 designed for the RD25 Hydrostatic Double Drum Vibratory Roller. Sourced directly from Wacker Neuson, this is the exact same part installed at the factory — correct dimensions, correct elastomer compound, and correct compression profile for the application. Keeping the right seal in place is critical on a hydrostatic roller where fluid integrity directly affects drive performance and control response.

Key Features

• Correct Elastomer Grade for Hydraulic Service — Manufactured to the precise material specification required for hydraulic fluid compatibility, ensuring the seal holds without swelling, cracking, or hardening over time.
• Exact 18 x 2 mm Cross-Section — Matches the OEM groove dimensions exactly, so the ring seats and compresses correctly without the leakage or bypass that comes from an imprecise fit.
• Genuine Wacker Neuson OEM Part — Part number 5000203645 is an authorized Wacker Neuson component, not a substitute, so you can be confident in traceability and fitment accuracy.
• Fits the RD25 Hydrostatic Double Drum Vibratory Roller — Verified for the RD25 series, making parts lookup and installation straightforward for technicians already familiar with the machine.
• Protects Hydraulic System Integrity — A failed or worn O-ring in a hydrostatic drive circuit can cause internal leakage, loss of drum drive pressure, and unpredictable roller behavior — replacing it promptly restores full hydraulic control.

An O-ring is a simple but critical sealing element used throughout a machine's hydraulic and fluid systems. It sits in a machined groove between two mating surfaces and, once compressed, forms a leak-free barrier that keeps fluid where it belongs and contaminants out. On a hydrostatic double drum vibratory roller like the RD25, properly functioning O-rings are essential to maintaining the drive pressure that moves and controls the drums. When an O-ring deteriorates — through heat cycling, chemical exposure, or mechanical wear — it loses its ability to seal, leading to fluid weepage, pressure drop, and eventually system failure 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.