these 1/2"-13 thread breathers fit Harley Davidson Evolution Sportster (XL) and Big Twin motors

#PSHC-212 1/4-28 x 1 length Polished Chrome Socket Head Allen Bolt - 10 Pack

with bearings installed for a 3/4" axle

- Effective in preventing leak from threaded portions

Glass License Plate Round Reflector - Light Blue Subcategory_Carburetor Jets & Needles these 1/2"-13 thread breathers fitThis glass license plate reflector serves a dual purpose of holding your license plate to your motorcycle AND looking classy at the same time. Real glass lens with a 5 8" long, 10 24 threaded stud. Washer and nut are included. Reflector lens measures 15 16" diameter. Sold individually. Made in the USA. Highest quality Made in the USA Glass lens Sold individually