The product is a set of four Genuine Mercedes-Benz spark plugs designed for M270 and M274 engines. Manufactured in Japan, these spark plugs come with a 2-year seller warranty and are a direct replacement for part numbers A0041597903 and A0041598103. The spark plugs are lightweight at 0.09 lbs each, making them easy to install and providing reliable performance for your vehicle. This limited-time special offer ensures high-quality ignition components for your Mercedes-Benz.