Wacker Neuson 5000160298 Washer-B8.4 Flat, 2Thk, 20 OD

The Wacker Neuson Washer-B8.4 Flat, 2Thk, 20 OD is a genuine OEM component designed for a wide range of Wacker Neuson vibratory rammers, tandem rollers, trench rollers, and mobile generators. Sourced directly through the Wacker Neuson parts program, this washer meets the exact dimensional and material standards set at the factory — no guesswork on fit or spec. Confirmed fitment spans the BS50-2, BS50-2i, BS60-2, BS60-2i, BS70-2i, RD12-90, RD16-90, RT56-SC2, RT82-SC2, and G-series generator lines, among many others. When you need to keep your equipment performing the way it left the factory floor, genuine OEM hardware like the is the straightforward choice.

Key Features

• Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact B8.4 bore, 2mm thickness, and 20mm outer diameter specification, ensuring correct seating and load distribution at every fastened joint.
• Drop-In Hardware Replacement — Matches the original hole clearance and bearing surface of the production washer, so it installs directly without any rework to mating fasteners or housings.
• Broad Cross-Series Fitment — A single part number covers BS50/BS60/BS70 rammer families, RD12/RD16 tandem rollers, RT56/RT82 trench roller lines, and G25 through G150 generator series.
• Consistent Clamping Load — Correct washer thickness and outer diameter maintain even clamping force across the joint, preventing fastener loosening caused by surface deformation or undersized bearing area.
• Long Service Life Hardware — OEM material grade resists the vibration fatigue that flat washers experience in rammer and roller applications, where high-frequency compaction forces cycle continuously through the bolted assembly.

A flat washer serves as the load-spreading interface between a fastener head or nut and the surface it clamps against. By distributing clamping force over a larger area, it prevents the fastener from pulling through or deforming softer material, and it helps maintain consistent bolt tension over time. In high-vibration equipment like vibratory rammers and compaction rollers, washers are especially critical — without the correct bearing surface, fasteners work loose faster, leading to misalignment, accelerated wear on surrounding components, and potential structural failure at the joint.

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.