Fluidyne FPS11-8KTM450-L Power-Flo Left Side Radiator Fits KTM 400/450/530 EXC/XC-W 08-11 Direct fit design means no installation modifications are required Radiator core is thicker than stock radiator for increased cooling and internal coolant passages are 33 per cent wider for improved flow Billet filler necks, TIG welded tanks and furnace brazed aluminum cores for strength and durability Left side only (sitting on the vehicle). Right side sold separately.