Center floor pan reinforcement. center. PartQualifier: intermediate center. A component used to support the Floor Pan Reinforcement. Reinforcement Panel or structure used for the vehicles Floor. Supporting sheetmetal structure attached to the underside of the Floor Pan. Anchor plate. Center Reinforcement. Cross bar. Cross sill. Crossmember. El REINFORCED. Reinforcement Brace. Seat c'member. Side REINFORCED.