Wacker Neuson 5200011898 Cotter Pin 3.2 X 20

The Wacker Neuson is a genuine OEM Cotter Pin 3.2 X 20 designed for the G320 generator series, covering Standard, Cold Weather, Custom, and Mobile configurations across Tier 4 and Tier 4 Final emissions variants. As a direct OEM part, ships to the exact dimensional specification used in original assembly, ensuring a proper fit without modification. This pin is compatible across the full G320 lineup, including Transport Canada-certified models and the Hertz-specification T4 Final variant. Keep a supply on hand for planned maintenance or field repairs — at this size, it's a small part that plays a critical role in mechanical retention.

Key Features

• Genuine OEM Dimensional Accuracy — At 3.2 x 20 mm, this cotter pin matches the exact diameter and length specified for G320 assembly, ensuring the pin seats and locks correctly in its bore without deforming or backing out under vibration.
• Direct Drop-In Fit for G320 Generator Series — Engineered to install into the same fastener position as the original, no resizing or adjustment needed at the installation point.
• Broad G320 Coverage — Compatible with Standard, Cold Weather, Custom, Mobile, Transport Canada, and Hertz-specification G320 generator configurations across T4 and T4 Final emissions tiers.
• Mechanical Retention Integrity — A correctly fitted cotter pin prevents fastener movement and component separation during operation; a worn or missing pin can allow critical linkages or shafts to shift under load.
• Fastener Safety Compliance — In generator applications, retention hardware like cotter pins is part of the mechanical safety system; using the correct OEM-spec pin supports proper equipment operation and service documentation.

A cotter pin is a split-pin fastener inserted through a drilled hole in a shaft or bolt to lock a nut, clevis, or linkage component in place and prevent it from working loose during operation. In generator equipment like the G320, cotter pins are used at key mechanical connection points where vibration could otherwise cause fasteners to back out over time. When a cotter pin shears, deforms, or goes missing, the retained component is free to shift — potentially causing mechanical play, accelerated wear, or component separation that leads to more significant damage if left unaddressed.

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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