21747747
Exhaust Pipe
Mack

The exhaust pipe is part of the vehicle’s exhaust system, guiding combustion byproducts away from the engine and toward the exhaust aftertreatment system. This component is designed for durability in high-heat environments, resisting thermal cycling and corrosion from road salts or moisture. The pipe’s diameter, bends, and fittings must align with the exhaust manifold and catalytic system to maintain proper flow, minimize backpressure, and reduce exhaust noise. Proper clamping and flange connections prevent leaks and ensure long-term integrity under vibration and heavy loads. Different configurations may include hangers or mounting brackets to secure the pipe along the chassis, with consideration given to thermal expansion and movement. Replacing with the correct fitment helps preserve engine efficiency, reduce emissions, and maintain performance under heavy-duty use. Source One Parts Center.