Brother free arm XR52 repair/ replacement parts. Feed dog #XA8078051 with two mounting screws. Will fit other Brother models including: PS2250, PS2360, PS2470, PS3100, PS3700, XL6040, XL6050, XL6060, XL6452, XL6462, XL6552, XL6562, XR46, XR46C, XR52C, XR65, XR65T as well as Baby Lock BL37, BL6300 and BL6800. Price includes shipping to lower 48, return for full refund if fails on your machine.