Polisport Radiator Louvers - Black Panels for Yamaha YZ 250F/450FX/WR 450F (2024) Yamaha YZ 450F (2023-2024) - OEM Fit, Durable Plastic, Enhanced Airflow, Easy Installation AXA Cast iron’s superior heat retention

Cast iron’s superior heat retention properties help maintain consistent exhaust temperatures for optimal turbocharger efficiency on modern high-performance applications

and competitive off-road riding

Dynamic tread pattern provides exceptional acceleration and traction

it delivers unmatched filtration without sacrificing airflow – keeping your Husqvarna 701 or KTM 690 running cleaner

and durability for cutting

Polisport Radiator Louvers - Black Panels for Yamaha YZ 250F/450FX/WR 450F (2024) Yamaha YZ 450F (2023-2024) - OEM Fit, Durable Plastic, Enhanced Airflow, Easy Installation AXA Cast iron’s superior heat retentionKeep your engine cool and protected with Polisport Radiator Louvers, engineered for optimal airflow and rugged off road durability. Made from Durable Gloss Polypropylene (DGP), these injection molded panels deliver a precise OEM style fit while enhancing the radiators cooling efficiency. Whether you're replacing stock louvers or upgrading for performance, Polisport offers a reliable solution trusted by riders worldwide.