Keep your truck's exhaust system in top condition with this premium Peterbilt Exhaust Bellows Kit. This comprehensive replacement kit includes all necessary components to service your exhaust system, perfectly matching OEM part numbers M66-7091-0320, M74-1020-001, and M74-6012-100. Designed specifically for Peterbilt and Kenworth trucks, this kit features a heavy-duty stainless steel mesh bellows and robust mounting clamps for reliable performance. The bellows effectively absorbs engine vibration and movement while maintaining a secure exhaust connection, helping to prevent leaks and ensure optimal engine performance. Installation is straightforward with included mounting hardware that matches factory specifications. This direct-fit replacement part is engineered to meet the demanding requirements of heavy-duty trucking applications, providing long-lasting durability under various operating conditions. Maintain your truck's performance and compliance with this high-quality exhaust system component.