Wacker Neuson 5000025660 Cotter Pin 1/8 X 3/4

The Wacker Neuson Cotter Pin 1/8 X 3/4 is a genuine OEM fastener designed for CT36 and CT48 walk-behind concrete power trowels and CRT36 and CRT46 ride-on concrete trowels. Sourced directly from Wacker Neuson, this cotter pin matches the original specification installed at the factory, ensuring a correct and secure fit the first time. The is confirmed to fit an extensive range of CT-series and CRT-series trowel configurations, including electric, gas, and variable-pitch models across the CT36 and CT48 families.

Key Features

• Genuine OEM Retention Integrity — Manufactured to the original Wacker Neuson specification, delivering the correct shear strength and dimensional tolerance required to securely retain pins and shafts on concrete trowel assemblies.
• Drop-In Installation — Matches the original hole diameter and leg spread geometry of the CT and CRT series, so it installs directly into existing bores without any modification to the surrounding hardware.
• Broad CT and CRT Trowel Coverage — Compatible with CT36 and CT48 walk-behind models as well as CRT36 and CRT46 ride-on trowels, covering multiple engine and voltage variants across both series.
• Prevents Unintended Fastener Disengagement — A correctly fitted cotter pin locks pivot pins and clevis fasteners in place during troweling operations; a missing or damaged pin can allow critical linkage components to shift or separate under load.
• Safety-Critical Retention Hardware — Cotter pins secure load-bearing pins in blade pitch and guard linkages; using the correct OEM part ensures the retention mechanism performs as designed and does not fail during operation.

A cotter pin is a small split fastener inserted through a drilled hole in a bolt, shaft, or clevis pin to prevent it from backing out or rotating free during machine operation. On concrete power trowels, cotter pins are used in blade pitch control linkages, handle pivot points, and guard attachment hardware where vibration and repeated movement would otherwise work fasteners loose over time. When a cotter pin shears, bends open prematurely, or goes missing, the pin it retains can migrate out of position, causing slop in the control linkage, unexpected blade angle changes, or — in the case of guard hardware — a safety-critical loss of containment. Replacing a worn or missing cotter pin with the correct OEM part restores the mechanical lock that keeps these assemblies operating as intended.

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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