Items purchased on Amazon, selling at a low price as they are no longer needed. OEM: Compatible with 17801-31131 Filters out air impurities, fine particles, pollen, bacteria, industrial exhaust, and dust, providing a good air environment inside the car and protecting the vehicle. Easy installation: Remove the old filter, replace it with the engine air filter, ensure the surroundings are sealed, and replace and secure the cover. 〈Reference Vehicle Compatibility〉*Please confirm compatibility with the manufacturer before purchasing. Compatibility may vary depending on the grade even for the same vehicle model and year. Please check the attached photos and bid with your understanding. Free shipping. Thank you. The outer box has some damage, but the main body is in good condition.