Cotter Pin Kit 3/16 x 4.5in S/L & GN

The Wilwood Cotter Pin Kit 3/16 x 4.5in S/L & GN is a precision brake hardware set designed for Wilwood Superlite and GN III caliper systems. These zinc-plated steel cotter pins serve as critical safety fasteners that secure caliper pistons and prevent unintended component separation during high-demand braking applications. Available as a set of 10 pins, this kit ensures you maintain proper brake assembly integrity across multiple brake systems or have replacements on hand for routine maintenance cycles.

Each pin measures 3/16 inch in diameter with a 4.5-inch length, matching OEM specifications for Wilwood's lightweight racing and performance brake platforms. The zinc plating provides corrosion resistance critical for vehicles exposed to moisture, salt air, or harsh track environments. The split-lock design ensures pins stay firmly seated once installed, eliminating vibration-induced loosening that can compromise brake system reliability. Proper cotter pin installation is fundamental to maintaining caliper alignment and preventing brake fade or loss of fluid pressure under extreme conditions.

This kit is essential for motorsports enthusiasts, track day competitors, and performance brake system builders working with Wilwood Superlite or GN III calipers. Whether you're rebuilding brake assemblies, performing seasonal maintenance, or stocking critical fasteners for competition vehicles, having verified OEM cotter pins eliminates compatibility guesswork and ensures repeatable, safe installation. The 10-piece count provides sufficient pins for multi-caliper installations or allows inventory rotation on high-use race vehicles where fastener inspection and replacement intervals are part of standard pre-event preparation.