The Freightliner Bellow Kit with a 5-inch diameter by 30 inches long is constructed from 321 stainless steel, ensuring durability and longevity. This kit includes one bellow, one ring, and one clamp, making it a practical and convenient option for most Freightliner trucks. With a 5-inch diameter flange and flare, this kit compares to the OEM 04-27254-000 and is sold as a complete set. Its high-quality construction and compatibility with most Freightliner trucks make it a reliable and efficient choice for maintaining and repairing your vehicle's exhaust system.