Parkerized reproduction of OEM# 37357-41 screw and 37361-41 locknut used on 1941-Early 1984 Big Twins

'Threaded' style is 1995 and earlier

NOTE: An in-line load equalizer may be needed for proper turn signal function depending on your application

Key Specifications:

add a clean finished look to all 2008-up Touring models

Engine Case Bore Plug Set - Harley-Davidson Evolution/Shovelhead/Sportster Length_14MM Parkerized reproduction of OEM# 37357-41Quit using shop towels to cover up case bore openings. This set of magnetic case plugs (4 pieces) will keep foreign material out of your bottom end. This material can cause major damage, and using a shop rag can inadvertently introduce these contaminants. Step up your engine building game! Made in the USA.