Timing Plugs

5 products

Timing Plugs for Harley-Davidson seal the inspection holes in your engine cases used to set ignition and cam timing. Available from Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, these plugs fit Big Twin engines from 1938 to 1999, Sportster models from 1952 to 2003 and 45-inch Flatheads. Colony and MCS supply chrome, polished and OEM-style replacements that prevent oil seepage while giving your engine a tidy, finished appearance. Replacing a worn or leaking timing plug is a quick job that stops oil stains on your garage floor and keeps your primary and cam chest sealed against the elements. Browse the full range below.