This GM radiator support insulator is designed for bolt-on mounting style and is made of rubber material. It is a vintage part that fits Corvette right passenger and can be placed in the engine compartment without the need for drilling or modifications. This item comes with a manufacturer part number of 14043104, but no manufacturer warranty. Its OE/OEM part number is also 14043104 and it is not a universal fitment. This radiator support insulator is a genuine GM product made in the United States.