Poulan Craftsman Chainsaw, Bar Oil Cap O RING , Fits Models Poulan Pro 210 220 221 260 Poulan 1900 1950 1975 2050 2055 2075 2150 2155 2175 2250 2550 3314 3416 3516 3816 3818 4018 4218 and many craftsman. Aftermarket part from high quality manufactuer. Price is for one O ring, cap not included.