Reinforced inner primary covers that have superior strength over the OEM counterpart and can be used as an OEM replacement part but are recommended if you run a High Performance engine. The reinforcement ribs prevent the cover from cracking at the bearing area under the heavy loads that are common with today's stroker and Big Block engines. Covers have a beautiful chrome plated finish and are available for Softail models from 1990 thru 2006. These Inner primary covers are available with or without seal, bearing, bushing and retaining ring. Lock tab kit must always be ordered separately. Looks even better when fitted in combination with our chrome outer primary cover ZPN210117 or 210118.