Pipes & Hoses
About Pipes & Hoses
Radiator hoses and cooling pipes carry hot coolant from the engine to the radiator and back. Rubber hoses harden, swell or crack with age, heat and pressure, and a failed hose can dump coolant fast. Riders shop here to replace aging hoses, to fit a matched set after a repair, or to switch to colored hoses.
Most listings are hose kits made for a specific bike. Kits are listed as OEM fit or race fit, in colors such as red, blue and orange, so read the description to see how each one is made. Models covered include Yamaha, Suzuki, Gas Gas, Husqvarna and KTM machines. Many kits are sold as a set so the hoses are replaced together. Hose clamp kits are listed in this category too, which is convenient since new hoses need good clamps. Squeeze a hose when the engine is cold. If it feels hard, mushy or swollen, or shows cracks, replace it. After the job, refill with the coolant your manual specifies and bleed trapped air as described.
Brands in this category include Atlantis, Helix, Moose Offroad, CV4 and Samco Sport. Related categories are Clamps & Hardware, Radiators and Water Pumps. The whole group is Engine Cooling. Pick your machine in the Ride Finder at the top of the page to see the hoses listed for it.
FAQs on radiator hoses
When should I replace radiator hoses?
Replace them when they feel hard, soft or swollen, show cracks or bulges, or leak at the ends. Hoses age with heat and pressure, so many owners also replace them as a set during a cooling system overhaul. Check your manual for the service interval for your bike.
What is the difference between OEM fit and race fit hoses?
OEM fit hoses are made to follow the shape and routing of the original ones. Race fit hoses are listed as a different style, so read the product description to see how they differ for your model. In both cases, confirm the make, model and years.
Do I need to drain the coolant to change a hose?
Yes, drain enough coolant to bring the level below the hose you are removing, and collect it for proper disposal, since coolant is toxic. After fitting the hose, refill with the coolant type your manual calls for and bleed trapped air.
Are colored hoses just for looks?
Colors are mainly a style choice, and what matters is the hose's fit, construction and condition. Choose a hose set listed for your model, and use the correct clamps. Check the product description for the hose material and any other details.
Should I replace the hose clamps with new hoses?
Yes, it is good practice. Clamps can rust, stretch and lose tension. A hose clamp kit made for your model includes the correct number and sizes, and it is easy to fit at the same time as the hoses.
