This climate control unit heater is a perfect fit for your 00 05 Cadillac Deville. It is designed to be clip-on and does not require any drilling or modifications for installation. The unit is made of plastic and comes with mounting hardware. It is an OEM used climate control unit that is compatible with your vehicle's left-hand drive. The unit is ideal for controlling the temperature of your car's air conditioning and heating system. The manufacturer part number is 10359470 and 25770176, and the OE/OEM part number is 25770176. The climate control unit heater is not a universal fitment and does not have any performance parts.