The Vaico Brake Booster Hose - V103666 is a high-quality replacement part for the brake system of a vehicle. It is designed to connect the brake booster to the intake manifold, allowing for the transfer of vacuum pressure to assist in braking. This hose is made from durable materials to withstand high temperatures and ensure a secure connection. It is compatible with various makes and models of vehicles and is an essential component for proper brake function.