Description

The K&N Filters Replacement Air Filter for Yamaha YZ450F (KNNYA-4518XD) is designed to enhance airflow and engine performance for your Yamaha YZ450F 449cc/18C motorcycle. Made to fit precisely and deliver long-lasting filtration, this air filter helps maintain engine cleanliness and efficiency during off-road riding. Designed for durability and easy maintenance, it’s an ideal replacement for riders who want dependable protection without sacrificing performance. Engineered by K&N Filters, this component matches OEM standards and supports optimal airflow. Fits model year and engine spec YZ450F 449CC/18C.

Features and Specifications:

Vehicle Fitment: Compatible with Yamaha YZ450F 449cc/18C engine models.
Height: 1.438 in (37 mm)
Outside Length: 7.688 in (195 mm)
Outside Width: 7.438 in (189 mm)
Weight: 1 lb. (0.4 kg)
Increased Performance: Boosts horsepower and acceleration.
Dual Functionality: Runs with or without foam for track or trail use.
Superior Protection: Special media and dry foam insert for off-road defense.
OEM Fitment: Directly fits OEM air box with application-specific sealing.
Easy Maintenance: Unoiled foam pre-filter is washable and reusable.
Ready to Use: Pre-oiled filter element for immediate installation.
Warranty Included: Backed by a one-year limited warranty.