K&N High Flow Air Filter for KTM 450 SMR Dirt Bike
K&N High Flow Air Filter for KTM 450 SMR 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 450 SMR Dirt Bike (2004-2026)
The KTM 450 SMR is a dedicated supermoto racing machine, having undergone continuous development from 2004 to 2026. It is primarily offered as a single, race-ready model rather than in multiple trims. It is powered by a single-cylinder, four-stroke engine, with a displacement ranging from 449 cc to 449.9 cc. Over the years, the 450 SMR has seen several major evolutions. Early models (2004-2007) utilized the carbureted RFS engine. In 2008, the XC4 engine platform and a new chassis were introduced. A significant redesign in 2012 brought electronic fuel injection (EFI) and an updated chassis. After an absence, it returned to North America in 2021, based on the 450 SX-F platform, featuring a compact SOHC engine and supermoto-specific components. Engine, chassis, and fork refinements followed in 2023 and 2025, while the 2026 model focused on noise reduction and connectivity. Q : How can I ensure parts fit my specific KTM 450 SMR?
R : Use the year and edition selector at the top of the page to find parts compatible with your exact model.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 5 to 10 hours (aggressive/race riding) or 10 to 15 hours (recreational riding) | Always replace the filter with each oil change. Recommendations vary slightly by year. |
| Air Filter | 5 hours (aggressive/race riding) or 10 to 15 hours (recreational riding) | Check more frequently in dusty or muddy conditions. |
| Spark Plug | 45 hours | Based on the 2023 manual. Older manuals recommend replacement "as needed". |
| Coolant | 24 months | Based on the 2023 manual. Check level regularly. |
| Belt | Not applicable | The KTM 450 SMR is chain-driven, not belt-driven. Chain maintenance is regular. |
| Valve Inspections | 15 to 20 hours (aggressive/race riding) or 30 hours (recreational riding) | |
| Top-End Inspections (cylinder head, piston, rings) | 25 to 40 hours (aggressive/race riding) or 50 to 60 hours (recreational riding) | |
| Bottom-End Inspections (crankshaft, transmission components) | 50 to 80 hours (aggressive/race riding) or 100 hours (recreational riding) |