Shop Peterbilt 387 CAC Clamps, Boots & Hoses

Peterbilt 387 CAC Clamps, Boots & Hoses

The Peterbilt 387 CAC Clamps, Boots & Hoses product lineup includes a wide range of high-quality silicone and stainless steel components designed to keep your Peterbilt 387 running smoothly. These products include heavy-duty T-bolt clamps, charge air cooler hoses and elbows, coolant hoses, and heater hoses - all engineered to withstand the demands of the road. Key features include 4-ply construction, temperature resistance, and corrosion-resistant materials. Whether you need to replace worn parts or upgrade your Peterbilt 387, this product lineup offers the durable, reliable components you can trust. Improve airflow, prevent leaks, and maintain optimal cooling and heating performance with the top-of-the-line parts in this product lineup.

Frequently Asked Questions About Peterbilt 387 CAC Clamps, Boots & Hoses

What size CAC boots and clamps do I need for my Peterbilt 387?

Most Peterbilt 387 models use 3-inch to 4-inch diameter CAC boots and corresponding T-bolt clamps. The exact size depends on your engine model and year. Pre-2007 models typically use 3.5-inch connections, while 2007 and newer models with emissions equipment often require 4-inch components. Always measure your existing connections or check your engine specifications before ordering to ensure proper fitment.

How often should I replace CAC boots and hoses on my Peterbilt 387?

CAC boots and hoses should be inspected every 6 months and typically need replacement every 2-3 years under normal driving conditions. Signs you need replacement include visible cracks, soft spots, oil saturation, or boost leaks causing loss of power. Heavy-duty applications or extreme temperatures may require more frequent replacement. If you notice black soot around connections or hear a whistling sound under acceleration, inspect your CAC system immediately.

What's the difference between silicone and rubber CAC hoses for my 387?

Silicone CAC hoses offer superior heat resistance (up to 500?F), longer lifespan (5-7 years), and better flexibility in cold weather compared to standard rubber hoses. While silicone costs 2-3 times more upfront, they resist oil degradation better and maintain their shape longer. Rubber hoses are adequate for stock applications but may need replacement every 2-3 years. For modified engines or severe duty applications, silicone is the recommended choice.

Do I need special tools to install CAC clamps and boots?

Basic installation requires a 5/16" or 8mm socket for T-bolt clamps and a flat-blade screwdriver for spring clamps. For easier installation, apply a thin layer of dish soap or silicone spray to boot ends. A heat gun can help soften tight-fitting boots, but avoid overheating. Some mechanics recommend a strap wrench for removing stubborn boots without damage. Always torque T-bolt clamps to 60-80 inch-pounds to prevent over-tightening and boot damage.

Which CAC clamp style works best for preventing boost leaks?

T-bolt clamps provide the most reliable seal for CAC connections on Peterbilt 387 trucks, offering 360-degree clamping force. Stainless steel T-bolt clamps resist corrosion and maintain consistent pressure better than spring-loaded or worm-gear clamps. For critical connections, use clamps at least 3/4-inch wide to distribute pressure evenly. Avoid reusing old clamps as they may have stretched or weakened, compromising your boost system's integrity.