Driver and Passenger Side Door Seal Kit (KD3011) by Fairchild®. Quantity: 2 Pieces. On body and on door mounted are the main weatherstrips that prevent water, air, dust and noise from entering the car or vehicle. Door seal weatherstripping can be attached to the door or the body of the vehicle using clips, fasteners, tapes, glues or fit into a channel. Many newer cars have primary and secondary door seals to provide greater control from the outside environment.