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 KTM 400 SX Dirt Bike
K&N
K&N High Flow Air Filter for KTM 400 SX 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
KTM 400 SX Dirt Bike (1998-2002)
The KTM 400 SX, produced between 1998 and 2002, is a motocross and off-road motorcycle renowned for its robustness and performance. Equipped with a 398 cc liquid-cooled, single-cylinder four-stroke engine, it was designed for competition on track and trail. This period saw significant evolutions for the model. A major evolution occurred in 2000 with the introduction of a new generation of four-stroke engines, often referred to as RFS (Racing Four Stroke). Prior to 2000, 400cc models primarily used the LC4 engine. The new RFS engine was accompanied by significant chassis and suspension modifications, including new WP forks and PDS rear suspension improvements, aiming for a lighter, more compact, and more maneuverable motorcycle. In 2001, the 400 SX also saw its transmission upgrade from four to six speeds, enhancing its versatility and performance. FAQ :
Q : How can I ensure this part fits my KTM 400 SX?
R : Please use our year and edition selector at the top of the page to confirm exact compatibility with your specific model.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Every 5 to 15 hours | Clean oil screen and drain plug magnet with each oil change. |
| Air Filter | Every 5 to 15 hours | Inspect and clean more frequently (every 2-3 hours) in dusty or muddy conditions. |
| Drive Chain | Every 5 hours | Clean and lubricate. |
| General Service | First service after 3 hours; subsequent services every 15 hours | For competition use, perform the 15-hour service after each race. Do not exceed intervals by more than 2 hours. |
These intervals are averages. Always consult the official owner's manual for your specific model and year for the most accurate information.