Muffler / Cub Cadet 393840-R91Pack Size:1Cub Cadet 393840-R91, Cub Cadet IH-393840-R91, Kohler 237550, Kohler 237550-SESF 157-305, Foley/Belsaw 5979497, Foley/PLP 157-305, Green Meadow KM127, NHC 267-1996, Oregon 35-384, Prime Line 7-03680, Quality 440030, Rotary 8284, Sunbelt IH-91, Sunbelt B1IH91Cub Cadet Garden tractors; Kohler K241, K301 and K321ID: 1 3/8 " INLET, OD: 3 1/2 " Canister, Length: 16 1/8 " OVERALL, Canister Length: 11 3/4 ", Does NOT include clamp