A Flange Cover is designed to cover and secure the flange connection, providing a protective barrier and sealing the opening in the Inlet or Outlet Bonnet of the Oil Cooler in the engine. It is typically made from durable material such as steel and has bolted connections to securely fasten and prevent any unwanted movements between the parts.Attributes:• Provides a reliable and secure seal for the component• Provided with 3 mounting holes to fit the fastener of size 3/8"Applications:A Flange Cover is used as a barrier for preventing the entry of external elements into the Oil Cooler Bonnet in the Water Lines of the engine.