Upper Tension, Brother #XA1052051

Compatible with Brother Sewing Machine Models: JS-23, LS-1217, LS-1520, LS-2000, LS-2125, LS-2125b, LS-2125i, LS-2129, LS-2130, LS-2150, LS-2160, LS-2220, LS-2720, LS-2725, LS-2820, LS-2825, LS-2920, LX-3125, LX-3125e, SL-7, VX-1120, VX-1125, VX-1140, VX-1435, VX-1500 & X-5. Alternative Part Numbers Include XE3453001