K&N High Flow Air Filter for Honda CRF450R Dirt Bike
K&N High Flow Air Filter for Honda CRF450R Dirt Bike
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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
Honda CRF450R Dirt Bike (2002-2026)
The Honda CRF450R, a legendary motocross machine, has dominated tracks from 2002 to 2026. Consistently powered by a 449cc or 450cc liquid-cooled, single-cylinder engine, this model has undergone significant evolutions across its seven generations. Key advancements include the introduction of Programmed Fuel Injection (PGM-FI) in 2009, a major engine and chassis redesign in 2017 with the adoption of coil spring forks and optional electric start, and a new frame and hydraulic clutch in 2021. Specialized trims like the CRF450RX (off-road), CRF450RWE (premium Works Edition), and CRF450R-S (value-oriented) have also been introduced, offering tailored performance for various riders. Q: How do I ensure parts fit my specific CRF450R model year?
A: To guarantee compatibility, please use the year and edition selector at the top of this page. Each part is designed for specific model configurations. Q: Are there significant differences between the CRF450R and its specialized trims?
A: Yes, trims like the CRF450RX, CRF450RWE, and CRF450R-S feature distinct components and settings. Always select your exact model and year for accurate fitment.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 5 to 10 hours | Replace filter with each oil change. Intervals vary by riding style: 10 hours for recreational, 5 hours for aggressive/race. |
| Air Filter | 2 to 15 hours | Clean and inspect. Intervals vary by riding style and conditions: 10-15 hours for recreational, 5 hours for aggressive/race, or more frequently in dusty conditions. |
| Spark Plug | Regular inspection | Inspect regularly and replace as needed based on condition. Specific replacement intervals vary. |
| Coolant | Regular inspection, replace every 2 years | Inspect levels regularly. Replace coolant every 2 years. |