Kit consists of 2 brush caps, 2 carbon brushes with spring, motor mounting bolt (boss) with one flat washer and one lock washer. This kit is for motors we sell on our web site including: Motor #159966, Motor #50001 (Replacement motor ONLY) 39963. Also for motors 270-B, NA35K, NA35L. This kit will NOT fit Kenmore or Singer original motors - ONLY the "Replacement motors we sell on the web site. We cannot predetermine if all parts in this kit are compatible with your particular set-up.