Diamond Advantage is an all-makes diesel engine parts business for Class 2–5 vehicles. Primary engines for these parts include Ford Power Stroke® Diesel, GM Duramax and Dodge Ram Cummins®. Diamond Advantage offers high-quality parts that are competitively priced and built on more than 100 years of Navistar® experience. That’s what sets Diamond Advantage apart — and keeps drivers ahead of the pack for the long haul. All Diamond Advantage parts are backed by Navistar and provide long-lasting quality and dependability. In addition, Diamond Advantage offers a two-year, unlimited mileage warranty with labor coverage, so customers can enjoy peace of mind.