The McCormick 6660516A2 is an 11V genuine glow plug designed for reliable cold starting in various McCormick, Case IH, Landini, and New Holland agricultural tractors. This essential engine component features an M10x1.25 thread, a total length of 70mm, a thread length of 20mm, and a 12mm hex key for installation. It ensures efficient pre-heating of the combustion chamber, crucial for optimal engine performance in diverse operating conditions. This glow plug also serves as a direct equivalent for several OEM part numbers from Perkins, Massey Ferguson, Claas, Fendt, Deutz Fahr, Same, Lamborghini, Hurlimann, Renault, and John Deere.