Oil Drain Seal Ring | WM90, WM170

The Wacker Neuson is a genuine OEM Sealing Ring designed for an exceptionally broad range of Wacker Neuson equipment, including BS50-4s and BS60-4s vibratory rammers, RD12-90 tandem rollers, CRT36-25 and CT36 series ride-on and walk-behind trowels, VP and WP series single-direction vibratory plates, BPU reversible vibratory plates, PT and PDT series pumps, GP and GPi series portable generators, and BFS series floor saws. As a genuine OEM part, is manufactured to Wacker Neuson's original design tolerances, ensuring it seats and seals exactly as intended across every compatible application. Cross-machine fitment makes this a practical stocking part for dealers, rental fleets, and contractors running mixed Wacker Neuson equipment. Confirm your model and machine number against the verified fitment list before ordering to ensure correct application.

Key Features

• Genuine OEM Sealing Integrity — Manufactured to the original compression and material specification, so the ring conforms correctly to mating surfaces without gaps or over-compression that can cause leaks.
• Drop-In Replacement Across Multiple Machine Families — Shares the same dimensional profile across all compatible models, so it installs into the same seat without rework, whether the host machine is a rammer, roller, trowel, plate compactor, pump, generator, or floor saw.
• Wide Fitment Coverage — Confirmed for BS50-4s and BS60-4s rammers, RD12-90 tandem rollers, CRT36-25 and CT36 trowels, VP/WP vibratory plates, BPU reversible plates, PT/PDT pumps, GP/GPi generators, and BFS floor saws — a single part number servicing a full equipment lineup.
• Prevents Fluid and Debris Ingress — A correctly functioning sealing ring keeps lubricants in and contaminants out; a worn or cracked ring allows oil loss, moisture intrusion, and accelerated wear on adjacent components.
• Practical Fleet Stocking Part — One part number covers machines across multiple product families, making it an efficient addition to any service inventory that supports a mixed Wacker Neuson fleet.

A sealing ring creates a pressure-tight barrier between two mating components — such as a shaft and housing, a pump body and cover, or an engine case — preventing fluid leakage and blocking the entry of dirt, water, and debris. When the ring is in good condition, it maintains the correct fluid levels and internal pressures that the machine depends on for safe, consistent operation. When a sealing ring deteriorates, cracks, or loses its compression set, the result is typically an oil or fluid leak, contamination of internal components, and progressive damage that can affect the engine, drivetrain, or hydraulic circuit it was protecting.

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.