Steel H1 3 Bar Van Rack System for RAM ProMaster 2013-On White 3X A500 crossbars, 14-gauge steel, 2" X 1" rectangular bar. Max Load capacity of 750 lbs. Galvanized mounting base and accessories for additional protection against rusting Specifically designed for Dodge ProMaster Mounting bases are 11 gauge steel and 14 gauge cross bars System is powder coated to protect against rust and corrosion