Wacker Neuson 5000012258 Lock Washer B10

The Wacker Neuson Lock Washer B10 is a genuine OEM component designed for the BTS 11 gasoline cut-off saw. Sourced directly from Wacker Neuson, this washer meets the exact material and dimensional specifications of the original part installed at the factory. It is a direct-fit replacement for the BTS 11, ensuring correct seating and clamping performance without any modification to the surrounding hardware. Keep a spare on hand to minimize unplanned service interruptions on the job.

Key Features

• Genuine OEM Material Integrity — Manufactured to Wacker Neuson's exact hardness and dimensional spec, ensuring consistent locking force and resistance to loosening under vibration.
• Direct-Fit Installation — Matches the original B10 washer profile for a drop-in replacement that seats correctly against mating fastener and housing surfaces.
• Confirmed Fitment — Verified for the BTS 11 gasoline cut-off saw (7/8 in. arbor configuration).
• Vibration-Resistant Retention — A properly functioning lock washer maintains fastener clamp load during the high-frequency vibration inherent to cut-off saw operation, preventing hardware from backing out during use.
• Blade and Guard Safety Relevance — Fastener integrity in a cut-off saw's blade assembly is a safety-critical factor; using the correct OEM-spec locking washer supports proper blade retention and guard alignment.

A lock washer is a hardened fastener component placed beneath a nut or bolt head to resist loosening caused by vibration, torque, or dynamic loading. In a gasoline cut-off saw like the BTS 11, the drive and blade assemblies generate significant vibration during operation, making secure fastener retention essential for both performance and operator safety. When a lock washer wears flat, deforms, or is omitted, fasteners can gradually back out, leading to component misalignment, accelerated wear on adjacent parts, or loss of blade assembly integrity.

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.