This gasket is from the fuel & carburation section in the Rolls-Royce & Bentley parts catalogues for models built between 1965 to 1980.
Apart from sealing the inlet manifold to carburettor joint, the purpose of this gasket is to insulate the carburettor from heat conducted via the inlet manifold. The original is constructed of layers of thick gasket paper. The Prestige Parts version is constructed of two layers of gasket paper, fixed to a synthetic compound specifically designed to inhibit heat conduction.
After years of wear and being exposed to extremely high temperatures, gaskets and seals need to be replaced from time to time. Car gaskets and seals are designed to prevent the fuel and air mixture from leaving the cylinder during combustion, while also keeping oil from leaving the crankcase at the same time. In older engines, you may find that your gaskets are made of cork, but in newer vehicles it is likely that they are made of thin metal or carbon. Most seals are made out of rubber and are placed between the rotating engine parts.
While it is important that these are replaced when a leak in the engine is detected, it is just as important to replace the gaskets and seals when any corresponding components of the engine are replaced.
Alternatively, you may wish to purchase the full steering rack overhaul kit, which is available here.
All our parts branded Prestige Parts have a 3 year warranty.