21088818
Tube
Mack

Engineered tubing designed for robust transport of fluids or air within heavy-duty systems. This part emphasizes a balance of strength, flexibility, and compatibility with high-temperature or high-pressure environments found in commercial trucks. It supports routing under the hood or along frame rails, resisting collapse, kinking, and environmental exposure while maintaining the integrity of the system it serves. The tube’s precise dimensions and material properties are selected to fit common Mack configurations, enabling straightforward replacement without extensive rework. As part of a maintenance program, ensuring clean, crack-free tubing reduces the risk of leaks, pressure drops, and heat transfer issues that can compromise performance. For fleet maintenance, replacing worn tubing helps sustain cooling, lubrication, or fuel circuits and contributes to safer, more reliable operation. Source One Parts Center.