K&N High Flow Air Filter for Kawasaki KX250 Dirt Bike
K&N High Flow Air Filter for Kawasaki KX250 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
Kawasaki KX250 Dirt Bike (1974-2026)
The Kawasaki KX250, a legendary motocross machine, boasts a rich history from 1974 to 2026. Initially launched as a two-stroke, air-cooled model, it evolved significantly over the decades while maintaining its core 249cc displacement. Key transformations include the introduction of liquid cooling and Uni-Trak monoshock suspension in 1982, marking a major leap in two-stroke technology. In 2004, the four-stroke KX250F debuted, eventually replacing the two-stroke model around 2008. Further advancements brought Digital Fuel Injection (DFI) in 2011, followed by electric start and a hydraulic clutch in 2021. The 2025 model year saw a substantial redesign, adopting a new frame based on the KX450 platform and significant engine updates. Throughout its production, the KX250 has primarily been a competition-focused motocross bike, with recent additions of off-road specific KX250X trims. Frequently Asked Questions:
Q: How do I ensure I select the correct parts for my KX250?
A: Due to the extensive evolution of the KX250 across its 1974-2026 production, it is crucial to use our year and model selector to find parts specifically compatible with your motorcycle's exact edition.
Maintenance
| Component | Interval | Details |
| Engine Oil Changes | Every 2.5 to 15 hours, depending on riding intensity. | |
| Oil Filter Replacement | Every 7.5 hours or with every oil change. | |
| Spark Plug | Check every 2.5 hours (race); clean and gap every 100 hours (general). | |
| Air Filter | Clean and re-oil every 2 to 15 hours, depending on conditions. | |
| Coolant | Check before each ride; replace annually or every 2 years. | |
| Top-End Inspections (piston, cylinder) | Every 20 to 60 hours, depending on riding intensity. | |
| Valve Inspections/Clearance | Every 10 to 30 hours, depending on riding intensity. | |
| Bottom-End Inspections (crankshaft, bearings) | Every 50 to 100 hours, depending on riding intensity. |