Frequently Asked Questions About International LoneStar CAC Clamps, Boots & Hoses

What years and models of International LoneStar trucks are these CAC components compatible with?

Our CAC clamps, boots, and hoses are designed to fit International LoneStar trucks from 2008 to present. These components are compatible with all engine configurations including the Cummins ISX15, MaxxForce 13, and MaxxForce 15. However, we recommend verifying your specific engine model and year before ordering, as some minor variations may exist between different production years. You can find your engine model on the emission label located on the driver's side door jamb or contact our support team with your VIN for exact fitment confirmation.

How do I know if my CAC boots need replacement, and what are the signs of failure?

Common signs that your CAC boots need replacement include visible cracks or tears in the rubber, oil residue around the boot connections, whistling sounds during acceleration, reduced engine power, increased turbo lag, and check engine lights related to boost pressure codes. During inspection, squeeze the boots gently - if they feel hard, brittle, or show any deformation, replacement is recommended. Most drivers report needing to replace CAC boots every 150,000 to 250,000 miles depending on operating conditions.

What tools and time are required for installing CAC clamps and boots?

Installation typically requires basic hand tools including a flathead screwdriver or 5/16" nut driver for clamp adjustment, and possibly a heat gun to ease boot installation. Most experienced technicians complete a full CAC boot replacement in 30-45 minutes. For first-time installers, allow 1-2 hours. The most challenging aspect is accessing the lower boots near the intercooler, which may require removing the bumper or working from underneath. Apply a thin layer of silicone spray on the inside of new boots to ease installation and ensure proper sealing.

What's the difference between constant torque clamps and standard worm gear clamps for CAC applications?

Constant torque clamps automatically adjust to maintain consistent clamping force as temperatures fluctuate, making them ideal for CAC applications where temperatures can range from -40?F to over 300?F. These clamps feature a spring-loaded design that prevents boost leaks caused by thermal expansion and contraction. Standard worm gear clamps are less expensive but require periodic retightening and may allow boost leaks over time. For LoneStar trucks operating in extreme conditions or hauling heavy loads, constant torque clamps are strongly recommended for their superior long-term performance.

Are silicone hoses worth the extra cost compared to standard rubber CAC hoses?

Silicone CAC hoses offer several advantages that justify their higher initial cost. They withstand temperatures up to 500?F compared to 250?F for standard rubber, resist oil and fuel contamination better, maintain flexibility in extreme cold, and typically last 3-4 times longer than rubber alternatives. Silicone hoses also maintain their shape under high boost pressure, reducing the risk of collapse. While rubber hoses may need replacement every 2-3 years, quality silicone hoses often last the life of the truck, making them more economical long-term for drivers logging high miles.