K&N High Flow Air Filter for KTM 525 EXC Dirt Bike
K&N High Flow Air Filter for KTM 525 EXC 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
KTM 525 EXC Dirt Bike (2003-2007)
The KTM 525 EXC, produced from 2003 to 2007, was a highly regarded off-road racing motorcycle. Known for its robust "RFS" (Racing Four Stroke) engine, this model featured a single-cylinder, liquid-cooled 510.4 cc engine, often marketed as 525cc. It delivered approximately 60 to 61 horsepower and was equipped with a Keihin MX FCR 39 carburetor and a six-speed gearbox, making it a formidable competitor in its class. Throughout its production run from 2003 to 2007, the KTM 525 EXC maintained a consistent core design, undergoing continuous refinements rather than full generation changes. Key updates included a significant suspension upgrade in 2003 with 48mm WP-USD forks and improved rear shock, alongside reinforced wheel hubs. The 2004 model saw strengthened clutch plates, a one-piece flywheel, and a new single-tube exhaust system for enhanced low-end torque. Further refinements in 2005 brought an upgraded FCR-MX carburetor and redesigned plastics, with the 2006 and 2007 models benefiting from these cumulative improvements. Specialized trims like the 525 EXC-G Racing and 525 XC Desert Racing were also introduced in 2006. Q: How do I ensure I'm selecting parts for my specific KTM 525 EXC model year?
A: Please use the year and edition selector at the top of this page to filter for parts guaranteed to fit your exact motorcycle.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Every 5 to 15 hours | Intervals vary by model year and riding style (recreational vs. aggressive). The oil filter is typically replaced with the engine oil. |
| Air Filter | Every 5 to 15 hours | Intervals vary by model year and riding style. Regular cleaning and re-oiling are essential. |
| Spark Plug | Every 30 hours or as needed | Specific interval of 30 hours noted for the 2006 model. Refer to your owner's manual for other years. |
| Valve Inspection | Every 15 to 30 hours | Intervals vary by model year and riding style. |
| Top-End Inspection | Every 25 to 60 hours | Intervals vary by model year and riding style. |
| Bottom-End Inspection | Every 50 to 100 hours | Intervals vary by model year and riding style. |
| Coolant | Check regularly | No specific flush/change interval provided in sources. Check levels and inspect hoses for leaks. |
| Drive Chain | Inspect and lubricate before each ride | Regular inspection, cleaning, and lubrication are crucial for longevity and performance. |