The McCormick 1984915C1 is a genuine OEM spark plug designed for optimal performance in various McCormick, Case IH, and New Holland agricultural machinery. This essential component ensures efficient ignition, contributing to smooth engine operation and fuel efficiency. It features an M14x1.25 thread, 19mm reach, and 20.8mm hex size, with a heat range of 7. This spark plug is a direct replacement for original equipment, compatible with numerous tractor models including McCormick CX, MC, MTX series, Case IH CX, MXM series, and New Holland TL, TS series.