Description Reviews MINI Oil Drain Plug Washer #11-13-7-546-275. All of our oil filters come with this crush washer but sometimes you need another one for whatever reason. Maybe you're building an engine or you need to drain the oil to replace something. This washer will seal correctly on your oil pan. We also sell the drain plug if you need it. 1 Review 5 Oil Plug Crush Washers Posted by Rick Rizzo on 13th Jan 2025 Fit great and work well.