Arlen Ness 10-Gauge Rocker Box Top Covers For Harley Twin Cam Features: Dress up your motor with Arlen Ness 10-Gauge complete engine and driveline covers Each piece looks great on its own and even better as a complete set Matching camshaft cover, pushrod covers, tappet block covers, clutch cover, and transmission top cover This full line of functional covers takes your bike to the next level of style Carved from 6061-T6 forged billet aluminum Rocker covers come with necessary gaskets and hardware and replaces the stock covers Sold as set