This genuine McCormick 219630 gear is an original equipment manufacturer (OEM) part designed for McCormick D series agricultural tractors. Featuring 23 teeth, an outer diameter of 125 mm, an inner diameter of 30 mm, and a thickness of 20 mm, this gear ensures precise and durable power transmission. It is a critical component for maintaining the operational integrity of your McCormick D320, D322, D324, D430, D432, D436, D439, D440, and D450 tractor models.