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Secondary bolt

The secondary bolt is used to mount the primary cover, it is not always used, depending on the model year.

2345


 Sportster_Engine_Primary_Primary-cover_2345_secondary-bolt_1952-1970 Sportster_Engine_Primary_Primary-cover_2345_secondary-bolt_1952-1970 CAD
Blueprint
The shorter bolt in the K-model installs in the ends of the primary cover. Problems: Straight slots get torn up by screwdrivers. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.

2346W

 Sportster_Engine_Primary_Primary-cover_2346W_secondary-bolt_1971-1978 Sportster_Engine_Primary_Primary-cover_2346W_secondary-bolt_1971-1978
Screw, 1/4"-20 x 1 1/2" pozidriv head. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.

913

 Sportster_Engine_Primary_Primary-cover_913_secondary-bolt_1979-1980 Sportster_Engine_Primary_Primary-cover_913_secondary-bolt_1979-1980
Bolt, 1/4"-20 x 1 1/2"  Pozidriv head. Problems: Pozidriv not real mate for Phillips head. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.

908

 Sportster_Engine_Primary_Primary-cover_908_secondary-bolt_1980 Sportster_Engine_Primary_Primary-cover_908_secondary-bolt_1980
Bolt, 1/4"-20 x 1 1/2"  Pozidriv. Problems: Straight slots get torn up by screwdrivers. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.

3481

 Sportster_Engine_Primary_Primary-cover_3481_secondary-bolt_1981-1984 Sportster_Engine_Primary_Primary-cover_3481_secondary-bolt_1981-1984
Bolt, 1/4"-20 x 1 1/2" socket head. Problems: Can never pick the right Allen wrench size. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.