K&N High Flow Air Filter for Kawasaki Ninja 400 Motorcycle - Street
K&N High Flow Air Filter for Kawasaki Ninja 400 Motorcycle - Street
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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 Ninja 400 Motorcycle - Street (2018-2023)
The Kawasaki Ninja 400, produced from 2018 to 2023, is a popular lightweight sportbike that succeeded the Ninja 300. It features a 399cc liquid-cooled, 4-stroke, DOHC, 8-valve parallel-twin engine, delivering around 45 hp and 38 Nm of torque. Key features like the Assist & Slipper Clutch, LED headlights, and a lightweight steel trellis frame were consistent throughout its production run. From its launch in 2018 through the 2023 model year, the Ninja 400 maintained remarkably consistent core specifications and trims. There were no major mechanical changes or generational updates during this period. Updates were primarily cosmetic, focusing on new color schemes. The most notable technical adjustment was a slight reduction in torque for 2022 and 2023 models to meet stricter Euro 5 emissions standards, resulting in approximately 37 Nm. Trims included the Standard, ABS, and the distinctive KRT Edition. FAQ:
Q: Will parts for the Kawasaki Ninja 400 fit my specific model year?
A: To ensure perfect compatibility, please use our year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 1,000 km (first service), then every 10,000 km or annually | Use 10W-40 JASO MA/MA2 oil. |
| Spark Plugs | Every 18,000 km | |
| Air Filter | Every 18,000 km | Cleaning is also recommended every 8,000 to 16,000 km. |
| Coolant | Every 2 years | |
| Valve Clearance | Inspect every 24,000 km | |
| Drive Chain | Every 1,000 km | Clean, lubricate, and adjust. More frequently under harsh conditions or after washing. |