K&N Replacement Air Filter Kawasaki ZX-6R / 636 / ZX-6RR (2009–2026) KA-6009

The K&N KA-6009 replacement air filter is engineered to meet and exceed the noise and emissions standards that govern road-legal motorcycles, giving ZX-6R, 636, and ZX-6RR riders a direct OEM swap that satisfies every regulatory requirement while actively improving airflow, throttle response, and peak horsepower across the full 2009–2026 model range.

Key Features

• Direct OEM replacement — fits straight into the stock airbox without any system modifications or ECU remapping.
• Fully compliant with noise and emissions regulations, making it road-legal across all applicable markets.
• High-flow filtration media delivers improved airflow over a standard paper element, translating into measurable gains in horsepower and acceleration.
• Washable and reusable design eliminates the ongoing cost of disposable filters — one filter lasts the lifetime of the engine.
• Maintenance interval of up to 80,000 km between cleans under normal riding conditions, dramatically reducing service frequency.
• Seamlessly compatible with OEM vehicle electronics — no sensor adjustments, no additional tuning required.
• Reduces landfill waste compared with single-use paper filters, making it the environmentally responsible choice.

Performance and Build Quality

K&N's signature oiled-cotton gauze media sits at the heart of the KA-6009. Unlike a paper element, the multi-layer cotton construction allows a significantly greater volume of air to pass through to the throttle bodies while still capturing harmful contaminants before they can reach the engine internals. The result is an air filter that simultaneously protects your engine and liberates the full potential of the ZX-6R's airbox volume. Because the filter integrates directly with the factory inlet system, it works in concert with Kawasaki's stock fuel injection mapping and all associated sensors from day one.

Long-Term Value and Sustainability

A conventional paper filter is a consumable — you buy it, you fit it, and you bin it at the next service. The KA-6009 breaks that cycle entirely. When the filter eventually becomes loaded with road grime, a K&N cleaning kit restores it to full performance, ready to be refitted and ridden again. Over the lifespan of a Kawasaki ZX-6R, that saving adds up to a meaningful reduction in both maintenance spend and waste. For riders who cover high annual mileage on road or track days, the extended 80,000 km service interval means the filter will often outlast several conventional service cycles without needing attention at all.

Fitment and Compatibility

The K&N KA-6009 is a confirmed direct fit for the following Kawasaki models:

• Kawasaki ZX-6R — 2009 to 2026
• Kawasaki ZX-636 — 2009 to 2026
• Kawasaki ZX-6RR — 2009 to 2026

Installation is a straightforward OEM swap requiring no airbox modifications, no drilling, and no additional hardware. Always verify fitment against your specific model year before ordering.

Specifications

• Part number: KA-6009
• Brand: K&N
• Type: Replacement (drop-in) air filter
• Filter media: Multi-layer oiled cotton gauze
• Fitment: Kawasaki ZX-6R / 636 / ZX-6RR, 2009–2026
• Maintenance interval: Up to 80,000 km
• Reusable: Yes — washable with K&N cleaning kit
• OEM electronics compatibility: Full — no modifications required
• Regulatory compliance: Meets noise and emissions regulations