K&N 2007-2009 Yamaha WR250R/WR250X Replacement Air Filter

K&N Performance Air Filter for 2007-2009 Yamaha WR250R / WR250X | YA-3586

Boost horsepower & acceleration on your 2007-2009 Yamaha WR250R/WR250X with K&N’s washable, reusable drop-in air filter. Maximum airflow, zero fuel tuning required.

Upgrade your motorcycle's intake system with the K&N Replacement Air Filter (YA-3586), custom-engineered specifically for the 2007-2009 Yamaha WR250R and WR250X dual-sport models. Designed to provide virtually unrestricted airflow while maintaining the critical filtration levels required to ensure long engine life, this drop-in filter is the ultimate performance upgrade for powersports enthusiasts.

Constructed with multiple layers of proprietary, pre-oiled woven cotton gauze media sandwiched between aluminum wire mesh, this pleated design creates a massive surface area that maximizes clean airflow to your carburetor or throttle body. Unlike disposable paper or easily degraded foam filters, the K&N YA-3586 features an application-specific sealing bead that snaps directly into your factory OEM airbox with no modifications, cutting, or special tools required. This filter provides immediate throttle response and sustained power output, ensuring your Yamaha breathes clean and runs strong—even at high altitudes or during extended trail rides.

Best Uses

1. Dual-Sport & Trail Riding: Designed to handle extended use in highly dirty, dusty off-road environments, protecting your engine from abrasive trail debris.
2. Everyday Commuting & Street Riding: Perfect for optimizing throttle response and fuel efficiency for urban commuting on the street-focused WR250X.
3. High-Altitude Adventures: Ideal for mountain trails and changing elevations, delivering consistent, clean carburetion without requiring jetting changes or fuel management adjustments.

Features

1. Premium Pleated Cotton Media: Utilizes multiple layers of oiled, woven cotton gauze to deliver maximum airflow and low restriction.
2. Direct OEM Fitment: Designed with an application-specific sealing bead to drop directly into the factory airbox with a precise, airtight seal.
3. Pre-Oiled and Ready to Ride: Arrives from the factory pre-oiled and ready for immediate installation and use.
4. No Fuel Management Modifications: Engineered to provide clean air delivery and a bump in performance without needing carburetor jetting changes or EFI tuning adjustments.
5. Washable & Reusable Design: Fully compatible with K&N filter cleaning kits, ensuring it is the last air filter your motorcycle will ever need.

Benefits

1. Enhanced Engine Performance: Noticeably improves horsepower and acceleration by allowing more oxygen to flow seamlessly into the engine.
2. Superior Engine Protection: Oiled cotton strands trap microscopic dust particles, shielding critical engine internals from premature wear during harsh off-road riding.
3. Eco-Friendly & Cost-Effective: Saves you money over time and keeps disposable paper and foam filters out of landfills by providing a lifetime of use.
4. Simplified Maintenance: Features large filtration capacity, allowing for long service intervals before requiring a wash and re-oil.
5. Hassle-Free Installation: Installs in minutes with basic tools, reusing your stock airbox hardware without voiding your vehicle warranty.

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