The invention provides seed and plants of the habanero pepper line designated PX11423487. The invention thus relates to the plants, seeds and tissue cultures of habanero pepper hybrid PX11423487, and to methods for producing a habanero pepper plant produced by crossing a plant of pepper hybrid PX11423487 with itself or with another pepper plant, such as a plant of another line. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of a plant of habanero pepper hybrid PX11423487, including the fruit and gametes of such plants.