This is a Cub cadet tie rod ball joint 723-3016. It fits 

Cub Cadet 1015 (138-200-100, 131-200D100, 139-200-100, 130-200-100) - Cub Cadet Lawn Tractor (SN: 126001 - 207400) - Transmission Controls
Cub Cadet 1215 (138-221-100, 137-220-100) - Cub Cadet Lawn Tractor (SN: 126001 - 147087) - Transmission Controls
Cub Cadet 1225 (133-201F100, 132-201F100) - Cub Cadet Lawn Tractor (SN: 207,401 - 239,300) - Transmission Controls
Cub Cadet 1315 (139-222-100, 130-222-100, 131-222F100) - Cub Cadet Lawn Tractor (SN: 147008 - 207400) - Transmission Controls
Cub Cadet 1325 (132-223F100, 133-223F100) - Cub Cadet Lawn Tractor (SN: 207401 - 239300) - Transmission Controls
Cub Cadet 1405 (130-243-100, 131-243-100) - Cub Cadet Lawn Tractor (SN: 170601 - 207400) - Transmission Controls
Cub Cadet 1415 (138-241-100) - Cub Cadet Lawn Tractor (SN: 126001 - 147087) - Transmission Controls
Cub Cadet 1415 (139-242-100, 138-242-100) - Cub Cadet Lawn Tractor (SN: 147088 - 170600) - Transmission Controls
Cub Cadet 982 (142-982-100, 142-982-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 984 (142-984-100, 142-984-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 986 (142-986-100, 142-986-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 982 (143-982-100, 143-982-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 984 (143-984-100, 143-984-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 986 (143-986-100, 143-986-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 982 (144-982-100, 144-982-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 984 (144-984-100, 144-984-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 986 (144-986-100, 144-986-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 1572 (148-710-100, 147-710-100) - Cub Cadet Garden Tractor (SN: 756300 - 799999) - Front Axle
Cub Cadet 1715 (138-261-100) - Cub Cadet Lawn Tractor (SN: 126001 - 147087) - Transmission Controls
Cub Cadet 1715 (139-262-100, 138-262-100) - Cub Cadet Lawn Tractor (SN: 147088 - 170600) - Transmission Controls
Cub Cadet 1772 (149-711-100) - Cub Cadet Garden Tractor (SN: 756300 - 799999) - Front Axle
Cub Cadet 1782 (140-712-100, 141-712-100) - Cub Cadet Garden Tractor (SN: 800000 - 821059) - Front Axle
Cub Cadet 1782 (142-714-100, 144-714-100, 145-714-100, 146-714-100, 143-714-100) - Cub Cadet Garden Tractor (SN: 821060 - 889000) - Front Axle
Cub Cadet 2072 - Cub Cadet Garden Tractor (SN: 756,300 - 799,999 - Front Axle
Cub Cadet 1872 - Cub Cadet Garden Tractor (SN: 756,300 - 799,999 - Front Axle
Cub Cadet 1882 (140-721-100, 141-721-100) - Cub Cadet Garden Tractor (SN: 800,000 - 821,059) - Front Axle
Cub Cadet 1912 (145-982-100, 145-982-399, 146-982-100, 146-982-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 1914 (145-986-100, 145-986-399, 146-986-100, 146-986-399) - Cub Cadet Garden Tractor - Front Axle
Cub Cadet 2072 - Cub Cadet Garden Tractor (SN: 756,300 - 799,999) - Front Axle
Cub Cadet 2082 (140-731-100, 141-731-100) - Cub Cadet Garden Tractor (SN: 800,000 - 821,059) - Front Axle