Wacker Neuson 5000163770 Washer 1/2 Split Lock

The Wacker Neuson is a genuine OEM Washer 1/2 Split Lock designed for the BFS 2020AS and BFS 1318AS floor saws. As a direct factory-sourced component, it meets the original engineering specifications used in Wacker Neuson's walk-behind slab saw lineup. This washer is confirmed for use across both the BFS 2020AS and BFS 1318AS models, making it a straightforward service part when replacing hardware during routine maintenance or blade system service. Having the correct OEM hardware on hand keeps your saw assembly torqued down properly and performing as intended.

Key Features

• Genuine OEM Hardware Integrity — Manufactured to the exact material grade and dimensional tolerancing specified for Wacker Neuson floor saw assemblies, ensuring consistent clamp load and bite when torqued.
• Split Lock Design — The split lock profile bites into mating surfaces under load, resisting loosening caused by vibration — a critical property on slab saws subject to continuous cutting vibration.
• Direct Fitment for BFS Floor Saws — Confirmed OEM fit for the BFS 2020AS and BFS 1318AS walk-behind floor saws with no modification to existing hardware positions.
• Maintains Fastener Security During Operation — A worn or missing split lock washer allows fasteners to back out under sustained vibration, which can compromise blade guard retention, depth adjustment components, or drive system hardware.
• Correct Size for the Application — The 1/2-inch specification matches the bolt sizing used in these BFS model assemblies, so you are ordering the right part the first time.

A split lock washer is a simple but essential fastening component placed between a bolt head or nut and the surface it clamps. Its split, slightly bowed profile creates spring tension when the fastener is tightened, which resists loosening under vibration and dynamic loads. On a walk-behind floor saw like the BFS 2020AS or BFS 1318AS — machines that transmit significant cutting vibration through the frame — maintaining proper fastener tension throughout the assembly is important for safe, consistent operation. When a split lock washer is worn flat, broken, or missing, fasteners can gradually back out, leading to loosened components and potential blade system or drive system issues.

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.

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