The Case IH MT40341421 shaft is an authentic OEM component designed for various Case IH JX series utility tractors. This drive shaft ensures reliable power transmission within the machinery. It is a direct replacement part, ensuring proper fit and function for models including JX100U, JX1070U, JX1080U, JX1090U, JX1100U, JX70U, JX80U, JX90U, JX95, JXU105, JXU115, JXU75, JXU85, and JXU95. This part is superseded by CNH part number 87304191.