## Prox Air Filter Insert Foam (HFF4012) Yamaha YZ 125/250 97-'20, YZ 250X 16-20 This high-quality Prox air filter insert foam (HFF4012) is the perfect solution for owners of Yamaha YZ 125/250 (1997-2020) and YZ 250X (2016-2020) motorcycles. It provides optimal engine protection against dust, sand, and other contaminants, guaranteeing long engine life and trouble-free operation. ### Why choose the Prox air filter insert? Prox is a renowned manufacturer of aftermarket motorcycle parts, known for the high quality of its products. The air filter insert (HFF4012) is made of durable foam, which is characterized by excellent filtration and airflow. This translates to improved engine performance and a more dynamic riding experience. Additionally, the foam is easy to clean and maintain, allowing for multiple uses. ### Compatibility: * Yamaha YZ 125 (1997-2020) * Yamaha YZ 250 (1997-2020) * Yamaha YZ 250X (2016-2020) ### Provide your engine with the best protection! Replacing the air filter insert is a simple and inexpensive way to ensure optimal engine protection. Choose the Prox air filter insert (HFF4012) and enjoy trouble-free riding for a long time.