This is a Cub Cadet 109 129 149 Upper Suction Tube.  This is a New Old Stock Part. Part No. IH-547139-R1 (39F-4)

Cub Cadet 109 (2050044U, 2050211U, 2050213U) - Cub Cadet Garden Tractor - Transmission Case, Diff, Hydro Drive & Rel Parts
Cub Cadet 129 (2050046U, 2050220U, 2050221U, 2050222U, 2050223U) - Cub Cadet Garden Tractor - Transmission Case, Diff, Hydro Drive & Rel Parts
Cub Cadet 149 (2050047U, 2050205U, 2050206U, 2050224U) - Cub Cadet Garden Tractor - Transmission Case, Diff Hydro Drive & Rel Parts