K&N Engineering KA-9018 High-Flow Replacement Air Filter for Kawasaki Z900RS

The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Built with premium oiled cotton gauze, this washable and reusable air filter is designed for long-lasting performance, a precision OEM-style fit, and durable construction to keep your motorcycle performing ride after ride. The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Associated products: 99-5000 Filter Care Service Kit Aerosol

• PRECISION OEM-STYLE FIT: Made with application specific seamless sealing beads and custom seals for easy installation (Where Applicable).
• Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals
• Multiple layers of woven cotton gauze media offers excellent filtration
• Designed to provide increased horsepower and torque
• Washable & reusable, pre-oiled and ready to ride
• Application specific base seal and sealing bead
• No-Hassle Lifetime Limited Warranty
• Made in the USA for over 40 years

Upgrade your motorcycle’s intake performance with the K&N Engineering KA-9018 High-Flow Air Filter. Designed as a direct replacement for the factory filter, it helps improve airflow to support stronger horsepower, responsive throttle control, and improved acceleration. Its application-specific construction provides an OEM-style fit for straightforward installation and reliable sealing where applicable.

The KA-9018 uses multiple layers of premium oiled cotton gauze arranged in a pleated design. This creates a large filtration area with low airflow restriction and high dirt-holding capacity, helping protect the engine during everyday riding. The filter arrives pre-oiled and ready to install, then can be cleaned and reused with the appropriate K&N Filter Care Service Kit, including the 99-5000 aerosol kit. Built for long-term use, it is backed by K&N’s No-Hassle Lifetime Limited Warranty and made in the USA.

Fitment includes 2018–2022 Kawasaki Z900RS models, including the ZR900 Z900RS and ZR900 Z900RS CAFE. This product is intended for powersports applications and may require applicable emissions-related acknowledgment before purchase or installation. Always verify motorcycle fitment and local regulations before ordering.

What’s Included

• One K&N Engineering KA-9018 washable and reusable high-flow air filter
• Pre-oiled cotton gauze filter media

Features:

• Increased Airflow: High-flow media helps support improved horsepower, throttle response, torque, and acceleration.
• OEM-Style Fit: Application-specific sealing beads and base seals provide a precise replacement fit where applicable.
• Washable and Reusable: Cleanable construction helps extend service life and reduce the need for repeated filter replacement.
• Durable Filtration: Multiple layers of woven cotton gauze provide effective engine protection with high dirt-holding capacity.
• Pleated Filter Media: Increased filtration area promotes low restriction and longer service intervals.
• Ready to Install: The filter is pre-oiled for convenient installation and immediate use.
• Lifetime Coverage: Backed by K&N’s No-Hassle Lifetime Limited Warranty.
• USA Made: Manufactured in the United States with over 40 years of K&N engineering experience.

Fitments:
2018 Kawasaki Z900RS Base
2018 Kawasaki ZR900 Z900RS Base
2018 Kawasaki ZR900 Z900RS CAFE Base
2019 Kawasaki ZR900 Z900RS Base
2019 Kawasaki ZR900 Z900RS CAFE Base
2020 Kawasaki ZR900 Z900RS Base
2020 Kawasaki ZR900 Z900RS CAFE Base
2021 Kawasaki ZR900 Z900RS Base
2021 Kawasaki ZR900 Z900RS CAFE Base
2022 Kawasaki ZR900 Z900RS Base
2022 Kawasaki ZR900 Z900RS CAFE Base
2022 Kawasaki ZR900 Z900RS SE Base
2023 Kawasaki ZR900 Z900RS Base
2023 Kawasaki ZR900 Z900RS CAFE Base
2024 Kawasaki ZR900 Z900RS Base
2024 Kawasaki ZR900 Z900RS CAFE Base
2024 Kawasaki ZR900 Z900RS SE ABS Base
2025 Kawasaki ZR900 Z900RS CAFE Base
2025 Kawasaki ZR900 Z900RS SE ABS Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1