K&N High Flow Air Filter
1019-0818 (MFG #: DU-9001)
$145.99
Sale price
$145.99
Regular price
$145.99
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K&N High Flow Air Filter for Yamaha WR450F Dirt Bike
K&N
K&N High Flow Air Filter for Yamaha WR450F Dirt Bike
K&N
$145.99
Sale price
$145.99
Regular price
$145.99
SKU:1019-0818
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Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
Yamaha WR450F Dirt Bike (2003-2026)
The Yamaha WR450F, an iconic off-road and enduro motorcycle, was introduced in 2003 and has continued to evolve through 2026. Powered by a 449cc (often rounded to 450cc) liquid-cooled, four-stroke engine, it is renowned for its versatility and off-road performance. While generally offered as a single model without distinct trim levels, the WR450F has undergone several major redesigns over the years. Early versions, from 2003 to 2011, were carbureted. A significant change occurred in 2012 with the adoption of electronic fuel injection and a new aluminum frame based on the YZ450F, enhancing handling and power delivery. Other notable evolutions include the introduction of the "reversed" engine design in 2015 and substantial engine and chassis updates in 2019 and 2021, aimed at optimizing enduro performance and efficiency. FAQ:
Q: Is this part compatible with my Yamaha WR450F?
A: To ensure perfect compatibility, please use the year and edition selector on this page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Every 1,000 km or 5 rides (2003); Every 10 h (recreational) or 5 h (aggressive/race) for other years | Replace filter with each oil change. Approximately 1.1 L of oil with filter change. |
| Air Filter | After break-in and every race (2003); Every 15 h (recreational) or 5 h (aggressive/race) for most years | Clean and re-oil regularly. Inspect and replace if damaged. Interval may be 10 h for recreational riding on some years (e.g., 2015). |
| Spark Plug | Inspection every 500 km or every 3 races (2003); Inspection after break-in and every race (2006) | Periodic inspection is recommended for all model years. |
| Coolant | Check level before each ride | Inspect hoses for leaks or wear. |
| Drive Chain | Every 5-10 h | Clean and lubricate. The WR450F uses a chain, not a belt. |
Maintenance intervals may vary by model year and riding style. Always consult the official owner's manual for precise information.