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Kenworth T660 CAC Clamps, Boots & Hoses

Keep your Kenworth T660 breathing strong with premium CAC clamps, boots, and hoses from BESTfit. This lineup is built to help you maintain solid airflow, prevent boost leaks, and protect your engine 's performance over the long haul. You ll find everything from high-temp silicone hoses and couplers to heavy-duty, rust-resistant T-bolt clamps all designed to handle high-pressure systems and extreme heat. Whether you're replacing worn parts or upgrading for better durability, these components help keep your charge air system sealed tight and running smooth. A tight CAC system means better efficiency, lower EGTs, and fewer breakdowns. These parts are made to hold up under pressure, reduce downtime, and keep your engine running cooler and cleaner. If you 're serious about performance and reliability, this CAC accessory lineup is a smart upgrade. Get the durability you need, the fit you want, and the peace of mind to keep rolling without worry.

Frequently Asked Questions About Kenworth T660 CAC Clamps, Boots & Hoses

What are the signs that my CAC boots need replacement on my T660?

Common indicators include visible cracks or tears in the rubber, oil residue around the boot connections, whistling sounds during acceleration, reduced turbo performance, and check engine lights related to boost pressure. During inspection, look for soft spots, bulging, or any deformation in the boot material. Most drivers report boot failure between 150,000-250,000 miles, though this varies based on operating conditions and maintenance habits.

Will aftermarket CAC hoses and clamps work as well as OEM parts?

Quality aftermarket options can match or exceed OEM performance when sourced from reputable manufacturers. Look for silicone hoses rated for at least 350?F and 100+ PSI, with 4-5 ply reinforcement. For clamps, stainless steel T-bolt or constant torque designs provide the best seal and longevity. Many drivers report better durability with premium aftermarket silicone hoses compared to OEM rubber, especially in high-heat applications.

What year range and engine configurations do these parts fit?

These CAC components typically fit Kenworth T660 models from 2008-2015 with ISX, C15, and Detroit engines. However, specific hose routing and clamp sizes can vary between engine manufacturers and displacement. Always verify your engine model and year before ordering, as Cummins ISX15 applications may require different boot angles than Caterpillar C15 setups. Check the part numbers on your existing components when possible.

How difficult is it to replace CAC boots and hoses myself?

Most experienced drivers can complete this job in 2-3 hours with basic hand tools. You'll need various sized sockets, screwdrivers, and possibly hose picks for removal. The main challenges include accessing tight spaces near the frame rails and ensuring proper alignment to prevent kinks. Having a second person helps when positioning longer hoses. Always replace clamps when changing hoses, and apply a thin layer of silicone spray to ease installation.

What size clamps do I need and how tight should they be?

T660 CAC systems typically use clamps ranging from 3" to 4.5" depending on location. Measure your hose OD carefully, as sizes can vary slightly between manufacturers. For torque specifications, most T-bolt clamps require 50-60 inch-pounds, while constant torque clamps are pre-set. Over-tightening can damage boots and create leaks. After installation, re-check clamp tightness after the first heat cycle and again at 1,000 miles.


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