The McCormick 6681219A1 is a genuine OEM injection pump designed for optimal fuel delivery in various McCormick CX series tractors, including CX100, CX105, CX110, CX70, CX75, CX80, CX85, CX90, and CX95 models. This critical component is also compatible with select Case IH JXU series (JX100U, JX1070U, JX1080U, JX1090U, JX1100U, JX70U, JX80U, JX90U, JX95U) and New Holland TL/TLA series (TL100, TL100A, TL70, TL70A, TL80, TL80A, TL90, TL90A) tractors, ensuring reliable engine performance and direct fitment. It replaces OEM part numbers 87300300 and 87300300R.