K&N 04-10 Yamaha YFZ450/450R Air Filter

SKU: YA-4504 | UPC: 024844105158

K&N YA-4504 Replacement Air Filter for 2004-2021 Yamaha YFZ450, YFZ450R, YFZ450X

The K&N YA-4504 is a direct-fit replacement air filter for Yamaha YFZ450, YFZ450R and YFZ450X models from 2004 to 2021. This washable, reusable filter boosts airflow for increased horsepower and acceleration while maintaining superior filtration in dusty off-road conditions. It installs easily into the OEM airbox without jet changes or fuel modifications.

Key Features

• High Airflow Filtration: Multiple layers of pleated cotton gauze media capture dirt and dust while allowing maximum air intake for clean carburetion at any altitude
• Direct OEM Fit: Application-specific sealing bead ensures leak-free installation directly into factory airbox on Yamaha YFZ450 series
• Washable Reusable Design: Pre-oiled and ready to ride, cleans easily for long service life and low maintenance costs
• Performance Gains: Increases horsepower and throttle response with no engine tuning required
• Off-Road Durability: Built for motocross, ATVs, UTVs with low restriction and high-capacity filtration area

Product Notes

• Pre-oiled filter arrives ready for immediate installation and use
• Clean and re-oil every 50 miles or after heavy dust exposure for peak performance
• Ships in protective retail packaging to prevent damage

Installation Notes

• Professional installation recommended.
• Drop-in replacement requires no cutting or modifications to airbox
• Compatible with all stock hardware, removes and replaces in minutes

This Part Fits

Year	Make	Model	Submodel
2004-2013	Yamaha	YFZ450	Base
2006-2007	Yamaha	YFZ450	Bill Balance Edition Base
2007-2008	Yamaha	YFZ450	SE Base
2009-2021	Yamaha	YFZ450R	Base
2009-2018	Yamaha	YFZ450R	SE Base
2020-2021	Yamaha	YFZ450R	SE Base
2010-2011	Yamaha	YFZ450X	Base
2011	Yamaha	YFZ450X	SE Base

Why Choose K&N?

• Proven in professional motocross and off-road racing worldwide
• Engineered with 8-layer cotton gauze for unmatched airflow-to-filtration ratio
• Backed by one-year limited warranty and decades of filtration innovation

Frequently Asked Questions

• Q: Will the YA-4504 fit my 2015 Yamaha YFZ450R?
  A: Yes, it fits all 2009-2021 Yamaha YFZ450R Base and SE models directly into the OEM airbox
• Q: What material is used in this air filter?
  A: Pleated, multi-layer woven cotton gauze provides high-capacity filtration with minimal restriction
• Q: What is the warranty and cleaning process?
  A: One-year limited warranty covers defects, wash with K&N cleaner, re-oil, and reinstall for reuse

Shipping &amp. Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Retail box measures 6 x 6 x 2 inches
• Weight: 0.6 lb