Threaded filter bung fits standard replacement filters (Fram

Automatic Advance and Retard: Helps prevent kickbacks and improves starting

a thicker style was also used on the brake plate side and on each end of the axle

This kit is designed to match stock gearing for 2006-2017 Dynas

measure the aftermarket air cleaner thickness to make sure it will work with your application

#9727-18 Head Bolt Set 1940-1947 Harley-Davidson 74/80 Alloy Head - Parkerized Brand_LC Fabrications Threaded filter bung fits standardAccurately machined, heat treated and parkerized bolts used with aluminum heads of Flathead 74's 80's 1940 47. Made in Ohio, USA.