Affordable Radiators 2458 Fits Trailblazer GMC Envoy Isuzu Ascender Buick Rainier Radiator 4.2 L6 OE-comparable configuration and appearance Vehicle test-fitted prior to market release, ensuring perfect drop-in fit Plastic-aluminum radiators are brazed with the state-of-the-art Nocolok furnace process Aluminum treated coating is applied to prevent corrosion and ensure product longevity