K&N Engineering YA-4001 Off-Road Replacement Air Filter for Yamaha YFM400 Big Bear

K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration. K&N Replacement Air Filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. K&N air filters are washable and reusable and provide high air-flow with excellent filtration.

• Designed to provide increased horsepower and acceleration specifically developed for Off-Road, Motocross, ATVs, UTVs and Side by Sides
• Fits directly into OEM air box with application specific sealing bead ensuring a precise fit
• Pleated media provides a large filtration area offering long service intervals
• No fuel management modifications are required to obtain increased performance
• Multiple layers of woven cotton gauze media offers excellent filtration
• Washable & reusable, most are pre-oiled and ready to ride
• One Year Limited Warranty

The K&N YA-4001 off-road replacement air filter is designed specifically for Yamaha YFM400 Big Bear models from 2000 to 2004, offering reliable protection and performance in dusty and challenging off-road environments. This washable and reusable filter maintains high airflow and excellent filtration, ensuring your ATV performs optimally during extended rides in dirt, mud, and high-altitude conditions. Its application-specific sealing bead guarantees a precise fit into the OEM air box, preventing unfiltered air from entering the engine and promoting consistent carburetion. The pleated media provides a large filtration surface area, enabling longer service intervals and reducing maintenance frequency. This filter requires no modifications to fuel management systems, making it a straightforward upgrade for enthusiasts seeking increased horsepower and acceleration without complexity. Crafted from multiple layers of woven cotton gauze, the filter captures fine particles while allowing maximum airflow, enhancing engine efficiency and power output. As a washable and pre-oiled component, it is ready to install out of the box, providing convenience and durability for off-road riders. K&N offers a one-year limited warranty on this product, ensuring quality and reliability for your ATV adventures. Whether you're tackling rugged trails or participating in motocross, this high-performance air filter supports your vehicle’s performance and longevity in demanding conditions.

Features:

• Designed to provide increased horsepower and acceleration specifically developed for off-road riding, motocross, ATVs, UTVs, and side-by-sides

• Fits directly into OEM air box with application-specific sealing bead ensuring a precise fit

• Pleated media provides a large filtration area offering long service intervals

• No fuel management modifications are required to obtain increased performance

• Multiple layers of woven cotton gauze media offers excellent filtration

• Washable and reusable, most are pre-oiled and ready to ride

• One-year limited warranty