40157-ZY6-000 L Side Cover Bracket - Overview. The 40157-ZY6-000 L Side Cover Bracket is a critical component designed for Honda marine engine systems. It provides secure mounting for the left side cover bracket, essential for protecting internal components from external elements and maintaining the structural integrity of the engine housing. By ensuring the cover is firmly attached, it helps keep the engine running reliably and safely.. Key Features. OEM genuine Honda part specifically designed