The job of the oil return tube snap ring is to make sure that your oil return tube remains locked in position instead of wandering around the guts of your motor. Unfortunately, stock oil return tube snap rings can wear out over time and lose their fastening abilities. When the day comes to replace your oil return tube snap rings, don't go to the local dealership and overpay for new ones. Instead, take a virtual trip to AutoAnything for guaranteed low prices and free shipping on your OEM-grade oil return tube snap rings.