The Freightliner Bellow Kit with a 4-inch diameter by 16 inches long offers durable 321 stainless steel construction and a 4-inch diameter flange and flare. This kit includes one bellow and two clamps, making it a practical and convenient option for most Freightliner trucks. It compares to OEM 04-28578-000, A04-25922-018, and A04-26193-018, ensuring compatibility and reliability. With its high-quality materials and comprehensive design, this bellow kit provides a reliable solution for truck maintenance and repair needs.