Polisport Radiator Louvers - Blue Panels for Yamaha YZ 450F (2018-2022) Yamaha YZ 250F/450FX/WR 450F (2019-2023) Yamaha YZ 250FX/WR 250F (2020-2023) - OEM Fit, Durable Plastic, Enhanced Airflow Inner Tube or maintaining your race machine

or maintaining your race machine

as well as Outlaw 90 and Sportsman 90 (2016-2025)

Rubber end caps protect the profile against impact

or beginner adventures while safeguarding small-displacement engines from dirt and dust

Made from Polisport’s innovative Durable Gloss Polypropylene (DGP)

Polisport Radiator Louvers - Blue Panels for Yamaha YZ 450F (2018-2022) Yamaha YZ 250F/450FX/WR 450F (2019-2023) Yamaha YZ 250FX/WR 250F (2020-2023) - OEM Fit, Durable Plastic, Enhanced Airflow Inner Tube or maintaining your race machineKeep 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.