A dual component sealing fastener designed to couple a first component having a rib to a second component having an aperture therethrough, the dual component sealing fastener comprising: a U-base clip component comprising: two opposing clip side walls joined together at a clip insertion end to form a U-shaped clip portion; and a pair of rib coupling barbs extending inwardly from the two opposing clip side walls; and a seal component comprising: a central wall having a rib receiving aperture therethrough; and two opposing aperture retention wings joined together at a wing insertion end to form a U-shaped wing portion, and each of the two opposing aperture retention wings having a wing trailing end, opposite the wing insertion end, coupled to the central wall; and a first component annular seal extending in a first direction away from a first side of the central wall; and a second component annular seal extending in a second direction away from a second side of the central wall opposite the first direction and opposite the first side, respectively; and wherein the U-base clip component and the seal component have an assembled configuration in which the U-base clip component and the seal component are coupled together to define an interior rib receiving cavity between both the two opposing clip side walls and the two opposing aperture retention wings, and in which the pair of rib coupling barbs extend into the interior rib receiving cavity, and in which the two opposing aperture retention wings extend exteriorly of the two opposing clip side walls; and wherein the pair of rib coupling barbs are designed to engage the rib to couple the dual component sealing fastener to the rib in a coupled configuration with the rib received within the interior rib receiving cavity, and wherein the two opposing aperture retention wings are designed to engage the aperture to couple the dual component sealing fastener to the aperture in the coupled configuration with the clip insertion end and the wing insertion end extending through the aperture. a U-base clip component comprising: two opposing clip side walls joined together at a clip insertion end to form a U-shaped clip portion; and a pair of rib coupling barbs extending inwardly from the two opposing clip side walls; and two opposing clip side walls joined together at a clip insertion end to form a U-shaped clip portion; and a pair of rib coupling barbs extending inwardly from the two opposing clip side walls; and a seal component comprising: a central wall having a rib receiving aperture therethrough; and two opposing aperture retention wings joined together at a wing insertion end to form a U-shaped wing portion, and each of the two opposing aperture retention wings having a wing trailing end, opposite the wing insertion end, coupled to the central wall; and a first component annular seal extending in a first direction away from a first side of the central wall; and a second component annular seal extending in a second direction away from a second side of the central wall opposite the first direction and opposite the first side, respectively; and a central wall having a rib receiving aperture therethrough; and two opposing aperture retention wings joined together at a wing insertion end to form a U-shaped wing portion, and each of the two opposing aperture retention wings having a wing trailing end, opposite the wing insertion end, coupled to the central wall; and a first component annular seal extending in a first direction away from a first side of the central wall; and a second component annular seal extending in a second direction away from a second side of the central wall opposite the first direction and opposite the first side, respectively; and wherein the U-base clip component and the seal component have an assembled configuration in which the U-base clip component and the seal component are coupled together to define an interior rib receiving cavity between both the two opposing clip side walls and the two opposing aperture retention wings, and in which the pair of rib coupling barbs extend into the interior rib receiving cavity, and in which the two opposing aperture retention wings extend exteriorly of the two opposing clip side walls; and wherein the pair of rib coupling barbs are designed to engage the rib to couple the dual component sealing fastener to the rib in a coupled configuration with the rib received within the interior rib receiving cavity, and wherein the two opposing aperture retention wings are designed to engage the aperture to couple the dual component sealing fastener to the aperture in the coupled configuration with the clip insertion end and the wing insertion end extending through the aperture.