Shop Kenworth T660 Radiator Tubes, Gaskets & Hoses

Trust 4 State Trucks for top-quality Kenworth T660 radiator tubes, gaskets, and hoses. We offer durable, reliable parts to keep your truck running smoothly, mile after mile. For all your Kenworth T660 radiator needs, shop with us for lasting solutions and optimal performance.

Kenworth T660 Radiator Tubes, Gaskets & Hoses

Keep your Kenworth T660 running cool and reliable with our full lineup of cooling system parts built for durability and performance. Whether you're replacing worn-out components or upgrading for better efficiency, we've got you covered. Browse a wide selection of radiator hoses, gaskets, clamps, and coolant tubes everything you need to keep your engine temps in check. From high-temp silicone hoses and steel constant torque clamps to poly-reinforced elbows and molded coolant tubes, these parts are built to handle the heat and the miles. Whether you're doing routine maintenance or tackling a full system refresh, our cooling parts are made to fit your T660 right and keep your truck running strong. Don t let a small leak turn into a big problem grab the parts you need and get back on the road with confidence. Shop now and keep your Kenworth T660 's cooling system working like it should cool, efficient, and ready for the long haul.

Frequently Asked Questions About Kenworth T660 Radiator Tubes, Gaskets & Hoses

What model years are these radiator components compatible with?

Our Kenworth T660 radiator tubes, gaskets, and hoses are designed to fit models from 2008 through 2018. However, there are variations based on engine type (Cummins ISX, Caterpillar C15, or Paccar MX) and whether your truck has standard or heavy-duty cooling packages. Always verify your specific engine model and VIN before ordering to ensure proper fitment.

How difficult is it to replace radiator hoses and gaskets on a T660?

Most radiator hose replacements can be completed in 1-2 hours with basic hand tools. You'll need pliers for hose clamps, a drain pan for coolant, and potentially a hose pick for stubborn connections. Gasket replacements typically require removing the radiator, which adds 2-3 hours to the job. The upper radiator hose is usually accessible from above, while lower hoses may require removing the front bumper or working from underneath.

What's the difference between OEM and aftermarket radiator hoses?

OEM hoses use EPDM rubber compounds rated for 300?F and 50 PSI, with reinforced fabric layers and pre-formed bends for exact fitment. Quality aftermarket options from Gates or Continental match these specifications at 30-40% less cost. Avoid economy hoses under $40 as they often use thinner walls and generic rubber that may fail within 12-18 months. Look for hoses with wire reinforcement in the bends to prevent collapse under vacuum.

How often should I replace radiator hoses and gaskets?

Replace radiator hoses every 4-5 years or 400,000 miles as preventive maintenance. Warning signs include soft spots, swelling near clamps, surface cracking, or coolant residue around connections. Gaskets should last 6-8 years unless you notice coolant leaks at the tank-to-core connections. Check hoses monthly during pre-trip inspections, especially the lower hose which experiences more heat cycles and vacuum stress.

Do I need special coolant or additives with new hoses?

Use only extended life coolant (ELC) meeting Kenworth's ES Compleat OAT specifications. Never mix conventional green coolant with red ELC as this causes gel formation that clogs tubes. When installing new hoses, flush the system if switching coolant types. Add supplemental coolant additives (SCAs) only if using conventional coolant. Most T660s from 2010 onward came factory-filled with ELC that requires no additives for 600,000 miles.