Economy carburetor repair kit including the gaskets, needle and seat. This kit fits Holley Carbs # List2871, List2871-1, List2923, List3012, List3013, List3257, List3257-1, R3657, List3658, 12R31338, R2923, R3012, R3013, , R4119-A with a two-piece gasket. These carburetors are often found on Ford 2000, 3000, 4000, 5000 tractors as well as Allis Chalmers 190 and 190XT tractors.