Kawasaki Gas Fuel Cap Z1000 Z750 ZRX1200 A1 R ZX-9R ZZR 1200 1400 600 Made of Heat Treated (Billet) Aluminum [6061-T6] Because of the increased percentage of Ethanol in todays fuel, we recommend greasing the gas cap gasket with Silicon Based Grease before installation No Casting or Molding are involved in the Manufacturing Process Manufactured using 100% CNC Machining / Finished with Anodize Coating This listing comes with: (1) Fuel Cap Base (1) Fuel Cap Lid - [Reuses the stock bolts]