Expertly designed by Mercury Marine/Mercruiser, the OEM Fourstroke Outboard Oil Filter 35-8M0162831 ensures optimal engine performance and longevity. This filter effectively removes contaminants to maintain clean oil for smoother operation and less wear and tear. Trust the industry experts for superior results. Fits: 9.9 HP EFI 2 Cyl - s/n 1R008146 & up 10 HP EFI 2 Cyl - s/n 0R833820 & up 10 HP Carb 2 Cyl - s/n 0R575531 thru 0R833819 15 HP EFI 2 Cyl - s/n 0R833820 & up 15 HP Carb 2 Cyl - s/n 0R235949 thru 0R833819 20 HP EFI 2 Cyl - s/n 0R833820 & up 20 HP Carb 2 Cyl - s/n 0R235168 thru 0R833819 25 HP EFI 3 Cyl - s/n 0R106999 & up 30 HP EFI 3 Cyl - s/n 0R106999 & up