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Lock washer

These lockwashers are used with the steel primary cover. I also put the copper washer used on the late-model chain tensioner stud in this category.

7036


 Sportster_Engine_Primary_Primary-cover_7036_lock-washer_1958-1961 Sportster_Engine_Primary_Primary-cover_7036_lock-washer_1958-1961 CAD
Blueprint
Lockwasher, 1/4" x 1/2" x 1/16". Image credit Harleyhummer.com.

7035

 Sportster_Engine_Primary_Primary-cover_7035_lock-washer_1962-1969 Sportster_Engine_Primary_Primary-cover_7035_lock-washer_1962-1969
Lockwasher, 1/4" x 1/2" x 1/16". Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.

6033

 Sportster_Engine_Primary_Primary-cover_6033_copper-washer_1977-1984 Sportster_Engine_Primary_Primary-cover_6033_copper-washer_1977-1984
Copper washer, 3/8" x 9/16" x 1/16". Used on the big stud that holds the later-model chain tensioner. Problems: Oil can still weep past the stud. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.