The McCormick 6506212M91 Spark Plug is an original equipment manufacturer (OEM) part designed for optimal ignition in various McCormick, Massey Ferguson, and Challenger agricultural and industrial machines. This genuine AGCO part ensures reliable engine starting and efficient combustion, contributing to consistent performance and fuel economy. With a weight of 0.12 kg and dimensions of 95 mm length, 51 mm width, and 51 mm height, this spark plug is built to exact specifications for a precise fit and long-lasting durability. It is a direct replacement for part number 6506212M1.