Shop Peterbilt 375 & 377 CAC Clamps, Boots & Hoses

Peterbilt 375/377 CAC Clamps, Boots & Hoses

Peterbilt 375/377 CAC Clamps, Boots & Hoses provide critical cooling components for Peterbilt trucks equipped with C15, Acert, and 3406E engines. This selection of high-quality silicone hoses, clamps, and adapters ensures proper airflow and temperature control to keep engines running efficiently. Features like heavy-duty construction, corrosion resistance, and flexible design make these parts ideal for demanding semi-truck applications. Truck owners and mechanics can find a wide variety of sizes and styles to meet their specific needs, including charge air cooler hump hoses, silicone coolant hoses, and stainless steel T-bolt clamps. These Peterbilt-compatible parts deliver reliable performance and long-lasting durability to maintain peak engine health and minimize costly downtime.

Frequently Asked Questions About Peterbilt 375/377 CAC Clamps, Boots & Hoses

What years do these CAC components fit for Peterbilt 375 and 377 models?

These charge air cooler components are designed to fit Peterbilt 375 models from 1987-2007 and Peterbilt 377 models from 1987-2000. However, compatibility can vary based on your specific engine configuration (Cat C12, C13, C15, or Cummins ISX). We recommend checking your existing hose diameter and clamp size before ordering, as some models may have different specifications depending on factory options.

How do I know what size CAC hose and clamps I need?

The most accurate way is to measure your existing components. CAC hoses typically range from 3" to 4" in diameter, with common sizes being 3.5" and 4". Measure the outside diameter of your metal pipes where the hose connects. For clamps, measure the outside diameter of your hose when installed. T-bolt clamps should be sized about 1/4" larger than your hose OD for proper clamping force. If you're unsure, our team can help identify the correct size with your VIN number.

Are silicone hoses worth the extra cost over standard rubber?

Yes, silicone CAC hoses offer significant advantages for most applications. They handle temperatures up to 500?F compared to 250?F for standard rubber, resist oil and coolant degradation better, and typically last 3-4 times longer. Silicone maintains flexibility in extreme cold and won't harden or crack like rubber. The higher upfront cost usually pays for itself through extended service life and reduced downtime.

What causes CAC boots to fail prematurely and how can I prevent it?

The most common causes are over-tightening clamps (which cuts into the hose), misalignment during installation, and exposure to oil leaks. To maximize lifespan, ensure pipes are properly aligned before tightening, use a torque wrench to tighten T-bolt clamps to 75-80 inch-pounds, and fix any oil leaks promptly. Also, avoid using petroleum-based lubricants during installation - use soapy water or silicone spray instead.

Can I replace just one CAC hose or should I do the complete set?

While you can replace individual hoses, we recommend replacing all CAC hoses and clamps as a set when possible. If one hose has failed due to age or heat cycles, the others are likely close behind. Replacing everything at once prevents repeat labor costs and potential roadside failures. At minimum, inspect all boots carefully - any showing cracks, soft spots, or oil saturation should be replaced together.