Dorman 674-6020 Exhaust Pipe Bellow Flex Pipe for Heavy Duty Trucks

The Dorman 674-6020 Exhaust Pipe Bellow — also commonly referred to as a flex pipe or exhaust bellows — is a direct-fit replacement for the original equipment pipe on select Kenworth and Peterbilt heavy-duty trucks. Engineered to restore proper exhaust system function, this bellow provides a critical flex point in the exhaust system between the engine and after-treatment emissions equipment.

Key Features:

• Direct OE Replacement: Designed as a drop-in replacement for the factory exhaust bellow pipe, restoring original fit and function
• Flex Point Protection: Absorbs displacements, vibrations, and thermal expansion caused by extreme exhaust temperatures
• Durable Construction: Built from durable materials engineered for reliable, long-service life in demanding heavy-duty applications
• Complete Installation Kit: Includes all necessary hardware required for a complete replacement — no additional parts needed
• Quality Tested: Undergone rigorous vehicle fitment and material testing to ensure proper fit and performance

Dorman's HD Solutions exhaust pipe bellows are trusted by fleet operators and repair professionals to keep heavy-duty trucks running efficiently. This part is sold as an individual unit and includes all components needed for a complete repair.