Peterbilt 362 CAC Clamps, Boots & Hoses

Frequently Asked Questions About Peterbilt 362 CAC Clamps, Boots & Hoses

What does CAC stand for, and what do these parts do?

CAC stands for Charge Air Cooler, which most people know as the intercooler. The clamps, boots, and hoses in this category connect the turbocharger to the charge air cooler and then to the intake manifold, sealing the piping so pressurized air moves through the system without leaking. If a boot cracks or a clamp loosens, you will typically notice a loss of power, boost leaks, or a whistling/hissing sound from the engine compartment.

How do I know which boot or hose size fits my Peterbilt 362?

Fitment depends on the diameter of the piping at the connection point and the specific engine configuration in your truck, since the 362 was built with a few different engine options over its production run. Before ordering, measure the outside diameter of the pipe ends you are connecting and compare that to the listed dimensions on the product page. If you are unsure, having your VIN or engine model on hand when you contact us will help make sure you get the correct part the first time.

What material are the CAC boots made from, and how long should they last?

Most CAC boots are made from reinforced silicone or heavy-duty rubber designed to handle heat, vibration, and constant pressure cycling from the turbo. Silicone boots generally hold up better over time against heat cracking and ozone exposure compared to standard rubber. Regardless of material, these parts are wear items, so it is a good idea to inspect them during routine maintenance rather than waiting for a boost leak to show up on the road.

Can I replace a CAC hose or boot myself, or does it need a shop?

Many drivers and shop technicians replace these boots and clamps themselves, since the job mainly involves loosening the old clamps, sliding off the damaged boot or hose, and installing the new one with fresh clamps in the same orientation. That said, access can be tight depending on where the connection sits in the engine bay, and it is important to torque clamps correctly to avoid a leak or damage to the piping. If you are not comfortable working around turbo piping, a diesel shop can usually knock this out quickly.

Should I replace the clamps at the same time as the boots or hoses?

Yes, it is generally worth replacing the clamps whenever you replace a boot or hose, especially if the old clamps are rusted, stripped, or have been reused multiple times. Worn clamps are a common cause of repeat boost leaks even after a new boot is installed, so putting in fresh, properly rated clamps helps ensure a tight seal and saves you from doing the job twice.