Exact Fit for 803916010 & OEM Specs: Direct replacement for OEM part #803916010. Precision dimensions: 20.5mm (0.8") outer diameter, 16mm (0.63") inner diameter, 2.5mm (0.1") thickness. Ensures leak-proof seal with factory-grade accuracy. Subaru Model Coverage (2011-2018): Fits: 2013-2015 BRZ, 2013-2018 Outback/Legacy (4-cyl.), XV Crosstrek (all engines), 2012-2018 Impreza (non-turbo), 2011-2018 Forester (see description for engine specifics). Verify compatibility before purchase. 10-Pack for Cost-Effective Maintenance: Includes 10 durable crush washers—enough for 10 oil changes. Saves trips to the auto shop and reduces long-term costs. OEM Quality Aluminum Construction: High-grade metal resists corrosion and withstands high temperatures. Single-use design (recommended replacement every oil change). Easy Installation: Simply replace the old gasket with the flat side facing the drain plug. No tools required. DIY-friendly solution to prevent leaks. 10-pack Subaru oil drain washers 803916010