K&N High Flow Air Filter for Suzuki Quadsport Z400 ATV
K&N High Flow Air Filter for Suzuki Quadsport Z400 ATV
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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
Suzuki Quadsport Z400 ATV (2003-2014)
The Suzuki QuadSport Z400 (LT-Z400) was a popular sport ATV produced from 2003 to 2014. It featured a consistent 398cc, 4-stroke, single-cylinder, liquid-cooled, DOHC engine throughout its run, known for its performance and reliability. A significant update occurred in 2009, transitioning from carburetion to electronic fuel injection (EFI) for improved throttle response and starting. This update also included a revised intake, updated cam profiles, a wider front track, wider foot pegs, and a stiffer frame. Further chassis refinements, including a wider stance, were introduced in 2012 to enhance handling. While primarily a single base model, "Special Edition" or "Limited Edition" trims were offered in certain years (e.g., 2008, 2011-2012) with unique graphics or minor component upgrades. FAQ:
Q: Are there different versions of the QuadSport Z400?
A: Yes, the QuadSport Z400 received updates over its production. Please use the year/edition selector on this page to find parts specific to your model.
Maintenance
| Component | Interval | Details |
| Engine Oil | Replace initially at 1 month, then every 6 months | Change when engine is warm. |
| Oil Filter | Replace initially at 1 month, then every 6 months | Replace at the same intervals as engine oil. |
| Spark Plug | Inspect every 6 months. Replace every 18 months. | |
| Air Filter | Clean every 3 months. Replace if worn, damaged, or dirty after cleaning. Some sources suggest replacement after 100 hours or annually. | More frequent cleaning in dusty conditions. Operating with a torn or absent filter accelerates engine wear. |
| Coolant | Replace every 2 years | Use SUZUKI COOLANT or equivalent for aluminum radiators, mixed 50:50 to 40:60 with distilled water. |
| Drive Chain | Inspect before every ride. Clean and lubricate regularly. Adjust slack to 30-40 mm. Replace if 20-pitch length exceeds 319.4 mm. | Clean with kerosene, lubricate with heavyweight motor oil. Avoid solvents that damage O-rings. Do not use commercially sold 'drive chain oil' that can damage O-rings. |