Carburetor Fits Allis Chalmers B C CA RC D10 D12One New Aftermarket Replacement Carburetor Fits: Fits Allis Chalmers: IB, RC, B, C, CA, D10, D12 Tech Info: 2 5 16" to 2 3 8" CC stud holes (Because of the smaller diameter studs that are included) 4. 88" throttle shaft length 1 1 8" throttle bore Replaces Part Numbers: 12522, TSX101, TSX102, TSX113, TSX114, TSX119, TSX120, TSX126, TSX128, TSX13, TSX132, TSX132A, TSX133, TSX134, TSX136, TSX137, TSX138, TSX142, TSX144, TSX146, TSX150, TSX151, TSX154,