1、Fitment: Radiator expansion tank cap is replacement for Land Rover Discovery 2 All Models 1998‑2004, which is fit perfectly with the original car. 2、OE Number: Radiator expansion tank cap replace part number is PCD000070. Please double check the OE part number of your item before ordering. 3、Function: Increases the boiling point of the engine coolant to maintain efficiency, seal and maintain cooling system pressure to keep the vehicle safe. 4、Professional Manufacturing: This tank cap meets strict production quality standards, stable performance, high reliability, high accuracy and sensitivity. 5、Premium Material: Radiator expansion tank cap is made of plastic material, rust proof, high strength, not easy to break, sturdy and durable.