Dorman 674-6028 Exhaust Pipe Bellow Flex Pipe for Mack/Volvo HD Trucks

The Dorman 674-6028 Exhaust Pipe Bellow — also referred to as a flex pipe — is a direct-fit replacement for the original equipment exhaust bellows found on select Mack and Volvo heavy-duty trucks. Engineered under Dorman's HD Solutions lineup, this bellow restores a critical flex point in the exhaust system between the engine and aftertreatment emission systems.

Key Features:

• Direct Replacement: Matches the fit and function of the OE exhaust bellow pipe to prevent exhaust leaks and restore lost engine efficiency
• Vibration & Thermal Management: Quality engineered to absorb displacement, vibration, and thermal expansion at extreme exhaust temperatures
• Durable Construction: Built from sturdy materials to strict manufacturing standards for long-term reliability and service life
• Complete Installation Kit: Includes all required hardware for a complete repair — no additional components needed
• Quality Tested: Has undergone vehicle fitment and material testing to ensure proper fit and performance for this specific application
• North American Engineering: Designed and engineered in North America by Dorman HD Solutions

Dorman's exhaust pipe bellows are part of a comprehensive HD Solutions catalog, backed by over 100 years of aftermarket experience. This flex pipe is the correct solution for restoring exhaust integrity on compatible Mack and Volvo truck applications.