CG125 motorcycle oil filter cover combination, filter, spring, sealing ring and oil pump/oil pan installation position fully match, directly replace the original parts, no need to modify the lubrication system structure; The filter adopts high-density metal mesh design, which can effectively intercept impurities in the oil (metal chips, dust, etc.), ensure the cleanliness of the oil, and reduce the wear of components; Including filter, spring, sealing ring, filter cover, component parameters pre-matching, no need to buy accessories separately, improve maintenance efficiency; The supporting sealing ring can effectively prevent oil leakage, the spring ensures the fit between the filter and the oil pan, and the double structure improves the reliability of the lubrication system. It is a necessary part for oil system maintenance and oil pump maintenance, and is suitable for regular maintenance of engine lubrication system.