Wacker Neuson 5000110110 Cotter Pin

The Wacker Neuson is a genuine OEM Cotter Pin designed for a broad range of Wacker Neuson equipment, including BFS floor saws, RD tandem rollers, CT and CRT concrete trowels, GP and GV portable generators, PT trash pumps, and BPU reversible vibratory plates. As a direct OEM replacement, this cotter pin is manufactured to the same specification as the original hardware installed at the factory. Confirmed fitment spans dozens of configurations across the BFS, RD, CT, CRT, GP, GV, PT, and BPU product families. Keep a spare on hand — this small fastener is a common service item across Wacker Neuson's equipment lineup.

Key Features

• Genuine OEM Hardware Spec — Manufactured to the exact diameter, length, and material grade of the original cotter pin, ensuring correct retention force in the pin bore without risk of premature shear or loosening.
• Drop-In Installation — Installs directly into the existing clevis or castle-nut bore with no rework needed; legs spread and seat the same way as the original fastener.
• Broad Cross-Family Fitment — A single part number covers floor saws (BFS series), tandem rollers (RD7, RD12), walk-behind and ride-on concrete trowels (CT, CRT, CRTv), portable generators (GP, GPS, GV), trash pumps (PT3A, PT4A), and reversible vibratory plates (BPU series).
• Maintains Mechanical Retention — A correctly installed cotter pin prevents unintended movement of pins, shafts, and castellated nuts in linkage and fastener assemblies; a missing or failed cotter pin can allow critical fasteners to back out under vibration.
• Safety-Critical Fastener — In linkage, axle, and control assemblies, cotter pins serve as the last line of defense against fastener migration; using the correct OEM-specification pin ensures it engages the bore fully and resists vibration-induced loosening.

A cotter pin is a split-leg fastener inserted through a drilled hole in a bolt, shaft, or pin to lock it in place and prevent rotation or axial movement. Once inserted, the legs are bent outward to secure the assembly — making it a low-cost but critical component in linkages, clevis connections, and castellated nut applications throughout construction equipment. When a cotter pin shears, corrodes, or goes missing, the fastener it secures is free to migrate under load and vibration, which can lead to component separation or loss of mechanical control in the affected assembly.

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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