This is a brand new replacement carburetor for tractors. This is used on models: Chalmers: D19 Case: 700, 740, 840 w/284 engine, 800 1000 Combines John Deere: 440, 1520, 2510, 4030 IHC: 574, 666, 666 Hydro, 674, 2500A Minneapolis Moline: G, GTA, GTB to 1955, GB 1955 up, G6, 550, M670 Oliver: DG, 99 1952 and up, 99HC, 99HL 1950-1952, 99KD, 900, 1600 Replaces part numbers: 10A10055 10A12283 10A22717 10A6268 11555 11555B 13608 14997 156304AS 4513488 506003M92 535407R92 7AS393A A20685 A20813 A24305 A62716 AR102793 AR59986 AS393F AS393G AT29295 AT29427 DXX LE806 TSX135 TSX168 TSX216 TSX259 TSX268 TSX342 TSX392 TSX394 TSX396 TSX411 TSX499 TSX581 TSX625 TSX677-1 TSX68 TSX693 TSX740 TSX759 TSX782 TSX785 TSX805 TSX817 TSX823 TSX845 TSX846 TSX848 TSX855 TSX861 TSX863 TSX870 TSX870-1 TSX874 TSX880 TSX887 TSX893 TSX901 TSX915 TSX915SL TSX916 TSX924 TSX924SL TSX929SL TSX935 TSX935SL TSX944 TSX944SL TSX945 TSX945SL TSX951 TSX951SL TSX952 TSX952SL TSX953 TSX953SL TSX962 TSX969 TSX969SL TSX975 TSX980 TSX980SL TSXU839 TSXU995 Thanks For Your Business!! 17A20