This MTD brand replacement duel line bumbut head and pre-wound spool are compatible with various outdoor power equipment models, including the Y780, WH80BC, H70SS, and TB90BC TB490BC TB590BC. The splitline replacement brushercutter head is designed for the Cub Cadet CC3075, CC4090, and CC5090 models, as well as the Bolens BL250 and Yard-Man YM90BC and YM26BC models. The head is made for easy installation and use, ensuring optimal performance and durability for your outdoor tasks. This product is perfect for those in need of a reliable replacement part for their yard machinery.