The Reinz Fuel Injector O-Ring - 407650400 is a high-quality replacement part for fuel injectors. It is designed to seal the connection between the fuel injector and the fuel rail, preventing leaks and ensuring proper fuel delivery to the engine. This O-ring is made of durable materials and is precision-engineered to fit perfectly with the fuel injector. It is compatible with a wide range of vehicles and is an essential component for maintaining the efficiency and performance of the fuel system.