Kuryakyn Kool Caps Engine Kit For Harley Twin Cam / Evolution Kool kaps cover the unsightly and unfinished bolt heads, making a smooth finished appearance. Installs easily over the heads of the existing bolts. Features: Complete set to cover engine, cam cover, transmission and primary cover Kit includes 49-3/16 socket head caps, 10-1/4 socket head caps, 8-7/16 hex head caps, 14-1/2 hex head caps, 1-5/16 socket head cap, 1- 9/16 hex head or T30 torx head cap screw, and tube of silicone adhesive