This End Cap Filler, Door Weatherstrip is designed from the original part for superior fitment and seal. For 1971-74 B-body Models Roadrunner Satelite GTX Charger 4.0-inch width provides complete coverage. Pre-drilled holes for easy installation. Premium seals with a corrosion-resistant brass metal core. Designed from the original part so it fits correctly. Replaces factory #3439740, 3581894, 3581895.