121222 – Toro Cotter Pin .09" x .75" | Genuine OEM Toro Part The Toro 121222 Cotter Pin is a genuine OEM retaining pin designed to securely lock linkages, control rods, and brake components in place across a wide range of Toro tractors, walk-behind units, and attachments. This external pressure square-cut cotter pin provides reliable retention in steering, brake, transmission, and hydraulic systems, helping prevent loosening due to vibration during operation. Product Details Manufacturer Part Number: 121222 Brand: Toro Part Type: Cotter Pin Pin Size: .09" diameter x .75" length Style: External Pressure, Square Cut Finish: Yellow Zinc (YWZ) OEM Status: Genuine Toro replacement part Function Secures linkage pins, rods, and shafts Prevents fasteners from backing out due to vibration Used in steering, brake, transmission, and hydraulic systems Provides quick installation and reliable retention Compatible Toro Equipment (Common Applications) This cotter pin is used extensively across many Toro platforms, including: Toro Wheel Horse® & Professional Tractors Commercial & Residential Lawn Tractors Steering Brake Kits Transmission & Direction Control Systems Hydraulic Lift & Control Assemblies Mower Deck Drive Systems Snow Blowers, Tillers, and Attachments ⚠️ Due to the extremely wide range of applications and model variations, always confirm compatibility using your equipment’s model and serial number before ordering. Installation Notes Designed for quick external installation Always replace cotter pins when removed Ensure proper pin diameter and length for application Do not reuse bent or fatigued pins Signs the Cotter Pin Should Be Replaced Bent or distorted pin Corrosion or fatigue Loose linkage or excessive play Pin missing or broken The Toro 121222 Cotter Pin (.09" x .75") is a small but critical fastener that ensures safe, reliable operation across a wide range of Toro equipment and attachments.