Wacker Neuson 5000012648 Lock Washer B12

The Wacker Neuson Lock Washer B12 is a genuine OEM Lock Washer B12 designed for a wide range of Wacker Neuson equipment, including BS50 series vibratory rammers, G25 through G85 skid-mounted mobile generators, RD11 and RD25 tandem rollers, VP and BPS series vibratory plate compactors, and ML series light towers. As a genuine OEM component, it is manufactured to Wacker Neuson's exact material and dimensional specifications, ensuring proper retention force and corrosion resistance in demanding field conditions. This Lock Washer B12 installs as a direct replacement across an extensive range of machine configurations — from two-cycle and four-cycle rammers to generator sets in standard, cold weather, and extended run tank variants. Confirm your model number and machine number against the fitment list before ordering to ensure correct application.

Key Features

• Genuine OEM Material Specification — Manufactured to Wacker Neuson's hardness and spring-tension requirements for a B12 lock washer, maintaining the clamping integrity the fastener assembly was engineered to deliver.
• Direct Bolt-In Replacement — Sized to the B12 standard, this washer seats correctly against mating fastener hardware without rework to surrounding components.
• Broad Cross-Family Fitment — Confirmed for BS50 and BS62/68 vibratory rammers, G25–G85 generator sets, RD11/RD25 tandem rollers, VP/BPS/VPY/VPA vibratory plates, ML light towers, and additional Wacker Neuson equipment families.
• Fastener Retention Under Vibration — Lock washers in high-vibration equipment such as rammers and compactors are critical to preventing fastener back-out; a worn or missing washer can allow bolted connections to loosen during operation.
• Fastener Joint Integrity — Using the correct OEM-spec washer in structural and drivetrain joints ensures the clamping load is distributed as designed, protecting both the fastener and the mating surface from premature wear.

A lock washer is a thin, hardened ring placed under a bolt or nut to resist loosening caused by vibration and dynamic loading. It works by maintaining tension in the fastener joint — the spring action or serrated edges of the washer bite into the mating surface and the fastener, resisting rotation. In high-cycle equipment like vibratory rammers and plate compactors, fasteners are subjected to continuous shock loads, making correctly specified lock washers an essential part of keeping bolted assemblies tight. When a lock washer is lost, damaged, or replaced with an incorrect size, the fastener can work loose over time, leading to component misalignment, accelerated wear on adjacent parts, or fastener failure.

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.

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