OEM 63858-49 W&W Multi Use Seal Washers 57-768
Seal washer by James Gaskets
for external oil filters Big Twins 1949-1965
primary oil level control Sportster 1971-1976
rocker cover screws Big Twin 1984-1998 (Softail 1999), Sportster 1986-2008, and Buell 1995-2008
copper
ID x OD: 6.75 x 15.9 mm, 0.85 mm thick
replaces Harley-Davidson part number HD 63858-49
gross weight: 2 g