QuickSilver 8M6001106 1 Distributor Cap Cap is made from a blend of PBT and PET plastics for increased strength, stiffness and resistance to warpage Solid brass inserts resist corrosion and electrical pitting for long service life High strength to weight ratio for durability and resistance to thermal cracking Designed to resist RFI interference with onboard electronics Produced by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser stern drive