Frequently Asked Questions About Mack CX Truck CAC Clamps, Boots & Hoses

What years and models of Mack CX trucks do these CAC components fit?

Our CAC clamps, boots, and hoses are designed specifically for Mack CX Vision trucks manufactured from 2013 to 2020. These components are compatible with all engine configurations including the Mack MP7 and MP8 engines. Always verify your specific engine model and year before ordering, as charge air cooler configurations can vary between early and late production years.

How do I know if I need to replace my CAC boots and hoses?

Common signs include visible cracks or tears in the rubber, oil residue around connection points, hissing sounds during acceleration, reduced engine power, and excessive black smoke. If you notice any bulging, soft spots, or collapsed sections in your CAC hoses, replacement is necessary. Regular inspection every 50,000 miles or during oil changes can help catch issues before they cause turbo damage or performance problems.

What size clamps do I need for my Mack CX CAC system?

Mack CX trucks typically use 3.5-inch, 4-inch, and 4.5-inch diameter clamps depending on the connection point. The turbo outlet usually requires a 4-inch clamp, while the CAC inlet and outlet connections commonly use 4.5-inch clamps. We recommend replacing clamps with heavy-duty T-bolt style clamps rated for 100+ PSI to ensure proper sealing under boost pressure. Always measure your existing components before ordering.

Can I install these CAC components myself, or do I need special tools?

Installation can be completed with basic hand tools including socket wrenches, screwdrivers, and pliers. However, accessing some connection points may require removing the front bumper or grille assembly. Allow 2-3 hours for complete replacement. Key tips include applying a thin layer of silicone lubricant to boot connections, ensuring clamps are positioned correctly before tightening, and checking all connections with soapy water for leaks after installation.

What is the difference between silicone and rubber CAC hoses for my Mack CX?

Silicone hoses offer superior heat resistance (up to 500 degrees F), longer service life (typically 1 million miles), and better flexibility in extreme temperatures. They cost more initially but resist oil degradation better than standard rubber. Rubber hoses are more economical and work well for standard applications but may need replacement every 250,000-300,000 miles. For trucks operating in extreme conditions or running higher boost pressures, silicone is the recommended upgrade.