End cap retainer. Left.STANDARD CAB. Right.STANDARD CAB. A Clip which helps secure the Cowl Vent Screen to it's mounting point. Cowl Cover Clip. Cowl Extension Clip. Wheel Arch Molding Clip. Cover. Extension. Grille Screen. Retainer. End cap Retainer. Wheel Arch Molding. Wheel Opening Molding Retainer. Included with: End cap, Wheel Opening Molding.