The McCormick 3546093M1 is a genuine OEM glow plug designed for a wide range of McCormick, Massey Ferguson, and Challenger agricultural and industrial tractors. This essential component ensures efficient cold weather starting by preheating the engine's combustion chambers. Manufactured to AGCO's stringent specifications, it provides optimal performance and durability. Key technical specifications include an overall length of 95 mm, an M10 x 1.25 thread, and an 11V operating voltage, making it a direct replacement for the original part.