Motocross and enduro cooling system - radiators, pumps and hoses for offroad motorcycles

The Cooling system category is for MX/enduro/off-road riders who want stable engine temps in slow technical sections and on wide-open sand or hardpack. Here you’ll find radiators, radiator braces, hoses, thermostat parts, caps, coolant, water pump components, and fan kits—everything needed to stop boil-over, reduce overheating on tight trails, and prevent small leaks from turning into a DNF. A healthy cooling setup keeps power consistent, protects the top end, and lets you focus on lines, not warning lights. When choosing parts, start with fit and compatibility: match your exact bike model/year and check hose routing, fan clearance, and shroud/bracket mounting points. Next, pick the right type and materials—reinforced silicone hoses for durability, higher-pressure caps for a higher boiling point, and radiator guards/braces if you ride ruts, rocks, or race bars-to-bars. Consider riding conditions: extreme heat, deep mud, or slow singletrack often benefits from a fan kit and fresh coolant, while high-speed MX may prioritize airflow and strong radiator support. Finally, plan maintenance: choose quality clamps, use correct coolant mix, and keep spares like a cap and hoses in your gear bag next to goggles, jersey, and knee braces. Common mistakes are mixing incompatible coolants, overtightening hose clamps, and ignoring bent fins or minor seepage after a crash. Replace hoses that feel soft or cracked, caps that won’t hold pressure, and coolant that’s discolored or contaminated. After hard rides, check for pinched hoses under the tank, wobble at the water pump, and mud-packed radiators that kill airflow. Tip: After washing, straighten lightly bent radiator fins with a fin comb and purge air from the system before your next ride.