These bungs are for 5/16" hardware

Fits both pre unit and unit Triumph 650cc motorcycles

Biltwell handlebars and risers that have received TüV verification are among the strongest and most thoroughly well-tested motorcycle parts in the world

If you need to replace the generator on your generator model Harley-Davidson motorcycle 1965 - 1984 this will do the trick

Fitment - XL Sportster: 1991 and up - FXST: 1989 and up (Replaces starter end cover) - FLST: 1989 and up - FLT: 1989 and up - FXD: 1989 and up Note: There are no returns on carburetors

Weld-In Steel Bung for 1-5/16 inch Filler Caps Makes_Harley-Davidson These bungs are for 5/16"This weld in mild steel bung is a perfect fit for Lowbrow Customs brand gas oil filler caps. 1 5 16" 12 threads. Sold individually. Made in Ohio, USA.