This is a brand new replacement carburetor for tractors. This is used on models: Chalmers: G2500 Case: 540, 540C, 541, 541C, 600 John Deere: M, MC, MT w/VD Engine, 40, 300, 320, 330, 400, 401, 420, 430, 1020, 2010, 2020, 2510 IHC: 454, 464, 504, 544, 574, 656, 666, 2400 A B Massey Harris/Ferguson: 65, 150, 302, 303, 304, 356, 1001 Minneapolis Moline: M-4 Oliver: OC-4, 88KD, 550, 660 1960 Replaces part numbers: 102631AS 10A18173 14996 194603M1 194603M91 310015 310015C 377234R93 396966R91 405030R91 520736M92 A35616 A35816 AM1613T AM1794T AM3227T AM3611T AM366T AR62244 AT12357T AT21142 AT21784 AT21848 AT22994 D3JL9510D G4573 TSC615 TSX1000 TSX1001 TSX1002 TSX245 TSX389 TSX475 TSX477 TSX530 TSX562 TSX615 TSX641 TSX662 TSX678 TSX688 TSX689 TSX695 TSX704 TSX711 TSX737 TSX738 TSX756 TSX768 TSX772 TSX784 TSX788 TSX791 TSX800 TSX806 TSX808 TSX819 TSX843 TSX849 TSX854 TSX857 TSX877 TSX878 TSX881 TSX885 TSX886 TSX888 TSX895 TSX898 TSX899 TSX904 TSX905 TSX905-1 TSX905I TSX905SL TSX906L TSX907 TSX907SL TSX908 TSX908SL TSX920SL TSX921 TSX921SL TSX923 TSX923SL TSX925 TSX925SL TSX933 TSX934 TSX934SL TSX938 TSX938SL TSX940 TSX941 TSX941SL TSX942 TSX943 TSX947 TSX955 TSX959 TSX959SL TSX961 TSX964 TSX964SL TSX965 TSX965SL TSX966 TSX967 TSX968 TSX970 TSX972 TSX973 TSX974 TSX977 TSX981 TSX984SL TSX985SL TSX988 TSX993 TSX994 TSX997 Thanks For Your Business!! 17A40